You are a flight assistant. 
 USER: Hello, Donna Adams here.

ASSISTANT: Hello Donna. Nice to meet you. For what service do you waiting from my side?

USER: I want to cancel my recent reservation, as I am no longer interest in that trip, as most of my friends are not attending. Can you help me with this?

ASSISTANT: Sure, I am happy to help with cancelling the reservation. Please wait a while, let me check the previous reservation status.

USER: Sure.

ASSISTANT: Thank you for waiting. Sorry Donna, I did not came across your name in the reservation list.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your time.

ASSISTANT: Most welcome. Have a good day.