You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you?

USER: I want to cancel my reservation as my Havasupai adventure got cancelled due to a sudden change of plan. Can you help me in cancelling my reservation mad eon name Mary Adams?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, no reservation found with your name to cancel the reservation.

USER: That's fine.

ASSISTANT: Thanks for contacting us.

USER: Thanks for your assistance.

ASSISTANT: Have a nice day.