You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: Due to health issues, I need to change my recent reservation. Please help me in that.

ASSISTANT: Sure, I am ready to help you.

USER: Thank you.

ASSISTANT: May I know your name?

USER: I am John Green.

ASSISTANT: I found your reservation, can you please share your airport codes?

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

ASSISTANT: May I know your travelling dates?

USER: My travelling dates are from Feb, 09 to Feb, 11.

ASSISTANT: Do you have any connection limit?

USER: I need a single connecting flight.

ASSISTANT: Is there any preferences?

USER: No.

ASSISTANT: Here, there is a flight with 1 connection in JetBlue airlines and price is 300. Shall I book?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been booked with the flight 1028.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.