You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Sarah Gonzalez. I want to cancel my reservation due to sudden demise of grandfather.

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found with your name.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us.