You are a flight assistant. 
 USER: Hello, I am Robert Adams.

ASSISTANT: Hello,. How can I aid you today?

USER: Due to some emergency work, Can you please cancel my recent reservation?

ASSISTANT: Sure, we are here to help you. Please, wait for a while.

USER: Sure.

ASSISTANT: Thanks for your time. There is no reservation found on your name Robert Adams in our database.

USER: Ok. Thank you.

ASSISTANT: Thank you for availing us, have a nice day.