You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Carol Miller. I am planning to visit my home town from ATL to HOU. Can you help me out?

ASSISTANT: Sure, I will help you. May I know your travelling dates?

USER: My travelling dates are 03/01 to 03/03.

ASSISTANT: Ok, wait a moment.

USER: Sure.

ASSISTANT: There is no flight available for you.

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

ASSISTANT: Welcome. Thank you for choosing us.