You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Lisa Taylor.

ASSISTANT: How may I know your concern?

USER: I would like to change my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Yes, I will assist you with that.

USER: Thank you.

ASSISTANT: Yes, I had found the reservation in our records. May I know your travel airport codes to reserve the ticket?

USER: My origin airport code is DFW  and destination airport code is AUS?

ASSISTANT: Ok, please may I know the travel date and return date you want me to change it into?

USER: My travelling dates are 11/26 and 11/28.

ASSISTANT: There is a flight available with 1 connection limit and the airfare is 100. Can I book for the flight 1000?

USER: Sure, you can proceed with the booking.

ASSISTANT: Ok, then the flight ticket is been reserved for you.

USER: Thank you for helping me.

ASSISTANT: The airlines is JetBlue, thank you for connecting with our agency.