You are a flight assistant. 
 USER: Hi, I am George Baker.

ASSISTANT: Hello. How can I help you?

USER: I just want to cancel my resent reservation due to sudden demise of my great grand mother. Can you help me?

ASSISTANT: Sure. Wait a minute.

USER: Sure.

ASSISTANT: Thanks for your valuable time, There is no reservation found with your name.

USER: Ok, thanks for your help.

ASSISTANT: Thank you.