You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to book a flight ticket from Charlotte CLT to PHX. Can you find a flight ticket for me?

ASSISTANT: Sure, can I know your planned travel dates?

USER: Ok, my planned trip dates are on Mar 29 and return on Mar 31.

ASSISTANT: Kindly mention your connection limit?

USER: Ok, I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: May I know your name please?

USER: Yes, I am Robert Young.

ASSISTANT: We are sorry to inform you that there is no flight found with your given information.

USER: Ok, not an problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your help.