You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Richard Collins. Please help me to book a flight ticket form Los Angels, CA-LAX to reach Phoenix, AZ-PHX.

ASSISTANT: Sure, please share your planned trip dates?

USER: I will depart on 05/27 and my return date would be on 05/29.

ASSISTANT: Ok, let me know your budget for flight ticket?

USER: I can pay up to 5000 for the flight ticket.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, we found a direct flight with UA airlines. Would you like me to proceed?

USER: That's fine, you can proceed with the booking.

ASSISTANT: Ok, your ticket has been processed with price 700.

USER: Thank you for your kind service in booking.

ASSISTANT: Thank you for reaching us.