You are a flight assistant. 
 USER: Hello. I am Carol Miller.

ASSISTANT: Hello, how may I assist you?

USER: I would like to book a flight ticket to Phoenix to attend my business meeting. Could you help me in booking from 11/17 to 11/19.

ASSISTANT: Sure, please share your travelling dates? Please share your airport codes?

USER: Sure, my journey is from ORD to PHX.

ASSISTANT: Sorry no flights found with your request.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thanks for approaching us.