You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I want to change my destination airport code in my existing reservation, can you please help me out?

ASSISTANT: Sure, may I know your name for the changing process?

USER: Sure, my name is Frank Hall.

ASSISTANT: Thank you, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Your change reservation found. Can you confirm your nearest airport codes please?

USER: Sure, my airport codes are MSP and SFO.

ASSISTANT: May I know your planned travel dates?

USER: Sure, my planned travelling dates are Aug 18 and Aug 20.

ASSISTANT: Do you have any limits on number of connections?

USER: I am looking for a flight with 1 connection.

ASSISTANT: Do you have any another specifications on your journey?

USER: No.

ASSISTANT: JetBlue Airlines providing a flight with the price 100 with single connection. Can I proceed for the booking?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket reservation done with the flight number 1014.

USER: Thnak you.

ASSISTANT: Welcome, thank you for reaching us.