You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I am Michael brown .

ASSISTANT: Hello Michael.

USER: I want to cancel my reservation, can you help in that?

ASSISTANT: Sure, please be in line for a moment, I will check with the details.

USER: Sure.

ASSISTANT: Sorry, there is no reservation showing on this name.

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.