You are a flight assistant. 
 USER: Hi, I am Dorothy Baker.

ASSISTANT: Hello, how can I aid you at this moment?

USER: Actually we planned to attend the Austin Hindu Temple on 11/22 and we  supposed to return on 11/24. Could you please help me in booking a direct flight?

ASSISTANT: Sure, we are perky to assist you. What is your budget for booking a flight ticket?

USER:  Actually I need a direct flight so  I can pay up to 5000.

ASSISTANT: Ok, I am glad to help you with booking a direct flight.

USER: Thank you.

ASSISTANT: Can you please share me your corresponding airport codes?

USER: I would like to board at Philadelphia PHL and I supposed to land at Austin AUS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for your time, there is no availability of direct flight at this moment, all the flights were reserved by another passengers.

USER: It's ok, I will check with other way to reach my destination. Thank you for your information.

ASSISTANT: Thank you approaching us, hope to serve you better next time.