You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I would like to change my reservation due to some health issues, can you please help me out with that?

ASSISTANT: Sure, please share your name.

USER: Kathleen Roberts here.

ASSISTANT: Your reservation is found. please share your trip dates.

USER: Sure, my trip dates are from May 02 to May 04.

ASSISTANT: Do you need any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Can I know your airport codes?

USER: My source and destination airport codes are DEN and AUS.

ASSISTANT: Do you need any other requirements?

USER: No.

ASSISTANT: There is a connecting flight in economy class with American Airlines and ticket fare of 200. Can I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket is reserved with flight 1010.

USER: Thank you for changing my reservation.

ASSISTANT: Thank you for choosing us.