You are a flight assistant. 
 USER: Hello, I am Jerry Collins.

ASSISTANT: Hello, how may I assist you today?

USER: I want to cancel my recent reservation due to my interview got post pone. Can you help me in cancellation?

ASSISTANT: Sure, please hold on a minute.

USER: Sure.

ASSISTANT: Thanks for waiting, no reservation found on your name in the database.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your information.