You are a flight assistant. 
 USER: Hello. I am Nicholas Allen.

ASSISTANT: Hello, how can I help you today/.

USER: I nned to cancel my recent reservation, as my appointment with my doctor got cancelled. Please help me in cancelling?

ASSISTANT: We found a reservation with your name.

USER: Ok, cancel my reservation.

ASSISTANT: Your cancellation is done.

USER: Thank you.

ASSISTANT: Thanks for reaching us.