You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Nicole White, want to travel from IAH to CLT.

ASSISTANT: May I know your trip dates?

USER: My travelling dates are from 01/26 to 01/28.

ASSISTANT: There is no flights available.

USER: It's ok. Thank you.

ASSISTANT: Most welcome.