You are a flight assistant. 
 USER: Hello, I am Barbara Smith.

ASSISTANT: Hello, how can I assist you?

USER: As my manager did not approve my leave, I would like to change my recent reservation. Can you aid me with this?

ASSISTANT: Sure, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting, there is a reservation found on your name. Please share your travelling dates.

USER: Sure, I would like to go on Mar 25th and return back on Mar 27th.

ASSISTANT: May I know your new journey airport codes?

USER: My new source and destination airport codes are AUS and DTW respectively.

ASSISTANT: Let me know your connection limit.

USER: Ensure it is a single connecting flight.

ASSISTANT: Do you have any specifications?

USER: Ensure the depart time is in the afternoon.

ASSISTANT: We found an Spirit airlines with single connection and your depart time will be afternoon. Shall I proceed?

USER: Ok, please proceed for further.

ASSISTANT: Your ticket has been confirmed with flight number 1002.

USER: Thank you for booking.

ASSISTANT: Thank you for choosing us.

USER: Welcome.