You are a flight assistant. 
 USER: Hello, I am Gregory Martin.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to visit Charlotte to overview the city with my friends, could you help me in booking within the fare of 5000. I prefer a direct flight.

ASSISTANT: Sure, could you please share assign dates?

USER: Yes, I would like to fly out on 08/03. And I intend to return on 08/05.

ASSISTANT: May I know from where would you like to deviate?

USER: Sure, my journey will be from PHX to CLT.

ASSISTANT: Ok, please wait for a while, let me search a suitable flight for you.

USER: Ok.

ASSISTANT: Thanks for waiting, sorry, unfortunately we did not find any direct flight on that route.

USER: Ok, no worries at all. Thanks for your quick service.

ASSISTANT: Thank you for opting us, have a pleasant day.