You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I aid you?

USER: I am Brenda Williams. Please help me with changing my reservation due to some changes in the plan of my trip with my colleagues.

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: We are happy to say that, we found a reservation on your name. Please share your new travelling detalis?

USER: Ok, My journey dates on 12/13 and 12/15. My journey points are LAS to DEN.

ASSISTANT: OK, please wait a minute.

USER: Sure.

ASSISTANT: We found a flight 1029 of Spirit airline with fare 200 and having a halt. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your booking has been done.

USER: Thank you for your help.

ASSISTANT: Thank you fir opting us.