You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Benjamin Miller.

ASSISTANT: How can I aid you?

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

ASSISTANT: Sure, I am perky to help you. Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting, we did not find any active reservation on your name in our data base.

USER: No issue, thank you.

ASSISTANT: Thank you for reaching us.