You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in changing my existing reservation, as my exam got postponed.

ASSISTANT: Sure, may I know your name to check for the previous reservation?

USER: Myself, Katherine Garcia.

ASSISTANT: I found your reservation, can you please help me with the airport codes?

USER: Sure, my airport codes are AUS to LAS.

ASSISTANT: Could you please share your travel dates?

USER: My new trip dates are June 26-28.

ASSISTANT: May I know your connection limit?

USER: I prefer to fly in connected flight.

ASSISTANT: Do you have any other requirement that you are looking for?

USER: No.

ASSISTANT: There is a flight available with price 100 and the connection is 1 with Frontier airline. Would you like me to proceed with the booking?

USER: Ok, please go ahead.

ASSISTANT: Your booking is confirmed with 1008 flight number and the depart time is 20:00 hours, return time is 14:00 hours.

USER: Thank you for changing.

ASSISTANT: Thank you for reaching us.