You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Kathleen King, I want to change my existing reservation. Could you help me with that?

ASSISTANT: Sure, I am here to help you. Please wait for a while.

USER: OK.

ASSISTANT: Thanks for your time, we found a reservation on your name. Please share me your new journey details.

USER: My travelling dates are from 12/08 to 12/10.

ASSISTANT: Please share me your airport codes?

USER: My source airport code is PHX and destination airport code is JFK.

ASSISTANT: There is a connecting flight with price of 300 and 1020 flight number. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your seat has been confirmed with UA airline.

USER: Thank you.

ASSISTANT: Thank you for choosing us.