You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I would like to cancel my resent reservation due to sudden demise of my great grand mother. Can you please check the reservation on this name Dorothy Davis?

ASSISTANT: Sure, please wait a moment.

USER: Ok.

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

USER: Ok, no problem.

ASSISTANT: Thanks for reaching us.

USER: Thanks for your information.