You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: My holiday trip has been cancelled, could you please help me with cancelling my recent reservation?

ASSISTANT: Sure, may I know your name?

USER: My reservation was done under the name Donald Walker.

ASSISTANT: Give me a minute.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for opting us.