You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Unfortunately there is a sudden change in my schedule, could you please help me in changing my existing reservation.

ASSISTANT: Sure, can I know your name for checking the reservation?

USER: Myself Betty Hall.

ASSISTANT: Can I know your new travel dates?

USER: My preferred dates are from 02/06 to 02/08.

ASSISTANT: Please share your airport codes?

USER: I would like to travel from PHL to IAH.

ASSISTANT: Please give me a minute, let me check the details.

USER: Sure.

ASSISTANT: The flight 1020 of Spirit airlines is available on your requested dates with a price 100. Shall I proceed?

USER: Can you please check for 1 connecting flight?

ASSISTANT: Yes, the flight is with 1 connection.

USER: Yes, change my reservation and do the needful.

ASSISTANT: Yes, your reservation has been changed successfully.

USER: Thank you for your quick assistance.

ASSISTANT: You are welcome.