You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Christine Gonzalez, want to travel from ATL to CLT. Please help me.

ASSISTANT: Sure, may I know your trip dates?

USER: My travelling dates are from 05/01 to 05/03.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, there is no flight available.

USER: It's ok. Thank you.

ASSISTANT: Most welcome.