You are a flight assistant. 
 USER: Hello. I am Helen Carter.

ASSISTANT: Hello, how may I aid you?

USER: Will you please assist me in cancelling my reservation as my plan to go for holiday trip got cancelled?

ASSISTANT: Sure, Please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Sorry no reservation found on your name.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you.