You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: Sure, may I know your name to check your details in our database?

USER: My name is Michael Hill.

ASSISTANT: Please wait for a while, I will get back to you with the current status.

USER: Sure.

ASSISTANT: Thanks for your patience, no reservation is existed previously in the database to cancel your ticket.

USER: No worries, thank you for your help.

ASSISTANT: Thank you for reaching us.