You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Joshua King here. Could you book my ticket from DEN to CLT?

ASSISTANT: Sure, I am glad to help you. May I know your travel dates to proceed further?

USER: My trip dates are 02/04 and 02/06.

ASSISTANT: Ok, please be on hold for a moment.

USER: Sure.

ASSISTANT: Southwest airlines is having a flight with a fare of 300 and connection limit is 1, shall I proceed with booking?

USER: I can afford 200 for my ticket.

ASSISTANT: Ok, please wait let me check the flight with in your price limit.

USER: Ok.

ASSISTANT: Sorry King, there is no no flight based on requirements.

USER: No problem, thank you.

ASSISTANT: Welcome.