You are a flight assistant. 
 USER: Hi. I am Daniel Martin.

ASSISTANT: Hello, how can I help you today?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Sorry to say that, no reservation was found with your good name.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us.