On Saturday, August 6, 2017, at approximately 7:45 p.m., I arrived at the Thrifty car rental counter to rent a full-size vehicle, location, Houston Hobby, 8620 Panair St, Houston, TX 77061. (Approximately one week before my arrival, I made car rental reservations through Carrentals.com.) The sales agent communicated to provide a return airline ticket and major credit card at the time of rental. I communicated that it was a local rental, therefore, I did not have a return airline ticket. The agent communicated it was their policy and that he could not rent the reserved vehicle. I requested to speak with a manager. The manager, Richard, came to the counter and communicated the same information. I asked Richard to speak to his manager, then Richard said: "He was not going to give me his manager's name and phone number" then walked away from the counter. Richard exhibited disrespectful, rude, and unprofessional behavior. I called the Thrifty car rental customer service line to file a verbal complaint. However, this measure was thwarted since I never spoke with anyone who took my complaint. Instead, I was placed on continuous holds and journeyed multiple transfers. My concern, if managers are not held accountable for their actions then this sends a negative message that it is okay to treat their potential customers in this manner. Resulting in company loss, dissatisfied customer, and branding damaged. Feedback, customer service training, a manager is not the final word, there should be some hierarchical accountability for managers.