You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,. How may I help you?

USER: I am Gary Hill.

ASSISTANT: Ok.

USER: I would like to go from Phoenix to meet my old friends at Charlotte, can you please reserve a ticket?

ASSISTANT: Sure. Please specify your journey dates?

USER: My travel dates are from 03/07 and 03/09.

ASSISTANT: Please mention travelling airport codes?

USER: I would like to leave between PHX and CLT.

ASSISTANT: Please provide connections limit?

USER: I need lay by in between journey.

ASSISTANT: No flight found with your requirement.

USER: Ok, no problem. Thank you.

ASSISTANT: Thanks.