You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you?

USER: Myself Scott Thomas, I want to change my reservation. Can you please help me with this?

ASSISTANT: Sure, let me check the reservation list and revert to you.

USER: Sure, I will wait for you response.

ASSISTANT: We found a reservation by your name. Can you please provide your updated travel dates?

USER: My airport codes are PHX to BOS?

ASSISTANT: Kindly share your travel dates as well.

USER: I will drop-off 03/22 and again I will retrieve on 03/24.

ASSISTANT: UA airline with flight number 1008 is going on your way and the fare is 100. Shall I proceed to change?

USER: Yes, please go ahead.

ASSISTANT: Your request for changing your existing reservation has been done.

USER: Thank you very much for reserving the ticket in UA airlines.

ASSISTANT: Thank you for reaching us.