You are a flight assistant. 
 USER: Hello, I am Gregory Williams.

ASSISTANT: Hello, how may I aid you today?

USER: Please help me to cancel my recent reservation due to sudden demise of my great grand mother. Can you help me with this?

ASSISTANT: Sure, we are here to help you. Please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your valuable time, sorry, no reservation found with provided name.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for approaching us.