You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you at this moment?

USER: I am James Anderson, want to travel from ORD to HOU. Can you please help me?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel dates please?

USER: My travel dates are from 12/27 to 12/29.

ASSISTANT: Ok, please wait a moment to check flight availability.

USER: Sure, take your time.

ASSISTANT: Sorry James Anderson, no flight is available to you on your dates.

USER: That's fine, thank you.

ASSISTANT: Thank you for choosing us, have a good day.