You are a flight assistant. 
 USER: Hello, I am David Edwards.

ASSISTANT: Hello, how can I help you today?

USER: Please help me in cancelling my recent reservation, as my exam got cancelled.

ASSISTANT: Sure, please wait a minute.

USER: Ok.

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

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.