You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: Owing an emergence, I want to change my existing reservation. Can you help me with it?

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: We found a new reservation, can you please share your new journey details?

USER: Sure, my airport codes are PHL-IAD.

ASSISTANT: Can you please provide your travel dates?

USER: My travel dates are 12/08 to 12/10.

ASSISTANT: May I know your name please?

USER: My name is Jeffrey Lopez.

ASSISTANT: Thank you for providing your details. We found a flight with JetBlue airlines, flight number is 1027 with one connection and price is 100. Shall I proceed?

USER: Yes, you can proceed with booking.

ASSISTANT: Ok, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thanks for choosing us.