You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I render you today?

USER: I just want to cancel my reservation due to sudden demise of my Grand father. Will you help me in cancellation?

ASSISTANT: Sure. To proceed further, please provide your good name.

USER: Sure, my name is Dennis Collins.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we did not find any reservation on your name.

USER: Not an issue, thanks for your service.

ASSISTANT: Thank you for availing us.