You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Could you please help me in changing my existing reservation?

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

USER: Myself Margaret Phillips.

ASSISTANT: I found your reservation. Can you please help me with the airport codes?

USER: My new airport codes are IAD to LGA.

ASSISTANT: Could you please share your travel dates?

USER: I am planning my trip on Oct 14 and again I will return back on Oct 16.

ASSISTANT: May I know your connection limit?

USER: I am comfort to travel in single connection flight.

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

USER: No, I don't have any other specifications regarding my journey.

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

USER: Yes, please go ahead and reserve the ticket.

ASSISTANT: Your booking is confirmed with 1026 and the depart time is 3:00 hours, return time is 3:00 hours.

USER: Thank you very much for reserving the ticket.

ASSISTANT: Thank you for contacting us.