You are a flight assistant. 
 USER: Hi. I am Michael Adams.

ASSISTANT: Hello, how exactly I can serve you the best today?

USER: Please cancel my recent reservation due sudden demise of my grandmother.

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Please, stay online. I will check the previous list and revert to you.

USER: Sure.

ASSISTANT: Thank you for your valuable time.

USER: Ok.

ASSISTANT: No reservation was found on your name to cancel.

USER: Oh! May be I made a wrong reservation, Anyways thank you.

ASSISTANT: Thank you for reaching us, have a good day.