You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Actually, I want to change my existing reservation due to some problems, can you please help me out?

ASSISTANT: Sure, I will help you with the change of flight reservation. May I know your name please?

USER: Sure, my name is Virginia Phillips.

ASSISTANT: I found a reservation please tell me your airport codes.

USER: Ok, my airports codes are from SFO to ATL.

ASSISTANT: And your travel dates please?

USER: Sure, my dates of journey is from 06/08 to 06/10. Please make sure that the price limit is 500.

ASSISTANT: Thanks for your patience. I have found Jetblue airlines which flies with one connection. The fare of flight ticket is 100.

USER: Ok, please go ahead with this ticket booking.

ASSISTANT: Yes, I have confirmed your flight ticket.

USER: Thank you for your help in changing my reservation.

ASSISTANT: Thank you.