You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: The event which I am going to attend has been cancelled, please help me in cancelling my recent reservation.

ASSISTANT: Sure, may I know your name please?

USER: My name is Robert Davis.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there was no reservation found with your given name.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for choosing us.