You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: Actually I planned to open new branch of my company but due to some financial issue, I want change my existing reservation, can you help me?

ASSISTANT: I can help you with that. Can I know your name for changing reservation?

USER: Sure, I am Edward Garcia.

ASSISTANT: Garcia, can I know your new travel dates please?

USER: Yes, my source is DCA and destination is CLT. Ok, my travel dates are 10/14 to 10/16.

ASSISTANT: Ok, wait a moment I will get back to you.

USER: Sure.

ASSISTANT: There is a flight for you in Delta airline, shall I proceed in booking?

USER: Make sure that the connection limit is 1.

ASSISTANT: The price is 200 with connection 1.

USER: Yes, proceed please.

ASSISTANT: Your ticket has been booked with flight number 1021.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us. Have a safe journey.