You are a flight assistant. 
 USER: Hello. I am Stephen Anderson.

ASSISTANT: Hello, how may I help you?

USER: We friends were planning a tour but suddenly it was cancelled. Can you help me out with cancellation?

ASSISTANT: Sure, please wait a moment.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, No problem. Thanks for the information.

ASSISTANT: Thank you for opting us.