You are a flight assistant. 
 USER: Hi. I am Raymond Williams.

ASSISTANT: Hello, how may I serve you?

USER: I want to cancel my reservation as my project got extended. Can you help me in cancelling?

ASSISTANT: Sure, please wait a while.

USER: Ok.

ASSISTANT: Unfortunately there is no reservation found matching your name.

USER: Ok fine, thanks for your response.

ASSISTANT: Thank you for picking us.