You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Rachel Campbell. I am planning to book a ticket to meet my family at HOU. Can you please help me out?

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to travel on 05/30 and return back on 06/01.

ASSISTANT: May I know your source airport code?

USER: My source code is MCO.

ASSISTANT: Sorry, there is no flight on your requested dates.

USER: That's fine. Thank you for your service.

ASSISTANT: Thank you for reaching us.