You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, may I know how best I can help you today?

USER: I am Daniel Phillips. Cna you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I will help you with that.

USER: Ok.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found with your name.

USER: That's ok, thank you.

ASSISTANT: Your welcome.