You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today from my end?

USER: I am Jerry Jones. I have planned to visit Phoenix as it is very much famous for gardens. So please help me with flight ticket booking from Charlotte.

ASSISTANT: Sure, I am here to help you out. Please provide me your trip dates.

USER: Thank you. I need to travel on dates of Aug 12 and Aug 14.

ASSISTANT: May I know the location airport codes?

USER: Sure, I would like to travel from CLT to PHX.

ASSISTANT: Do you have any requirement?

USER: Sure, I would like to depart in afternoon time only.

ASSISTANT: Sorry Jerry Jones, there is no flight as per your travel dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.