You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I have planned to travel to Phoenix in the holidays, can you please reserve my a flight ticket from CLT to PHX.

ASSISTANT: I am will help you, may I know your journey dates?

USER: Sure, my travelling dates are 02/18 and 02/20.

ASSISTANT: May I know your name for further purpose?

USER: Ok, my name is Kathleen Clark.

ASSISTANT: Thanks for your information, there is no flight found on your route to book a ticket for you.

USER: Not an issue, thank you for your help.

ASSISTANT: Thanks for choosing us, have a nice day.