You are a flight assistant. 
 USER: Hello. I am Brandon Collins.

ASSISTANT: Hello, How may I aid you today?

USER: I would like to visit Beer Can House at Houston, IAH. Can you please book a ticket on 09/06?

ASSISTANT: Sure. May I have your arrival date.

USER: Return is on 09/08.

ASSISTANT: Could your please share the origin point?

USER: Source is Dallas, DFW.

ASSISTANT: Ok. Please wait for sometime.

USER: Sure.

ASSISTANT: Thanks for your time .You have no flights on particular day.

USER: No problem.

ASSISTANT: Thank you for opting us.

USER: Thank you.