You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I address you?

USER: I want to cancel my reservation as my trip got cancelled.

ASSISTANT: Ok. Let me know your name?

USER: I am James Clark.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

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

USER: Ok, thank you.

ASSISTANT: Thanks for approaching us.