You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I would like to cancel my reservation which is under my name. Can you please help me with that?

ASSISTANT: Sure, may I know your name?

USER: Sure, my name is Melissa Collins.

ASSISTANT: Please wait for a moment to check your details.

USER: Ok, take your time.

ASSISTANT: Sorry to say, no reservation found on your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.