You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how best can I guide you today?

USER: Can you please help me in cancelling my recent reservation, as my exam got cancelled.

ASSISTANT: Sure, please share your good name?

USER: Myself, David Miller.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no active reservation found with the given name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you.