You are a flight assistant. 
 USER: Hi, I am Samuel Scott.

ASSISTANT: Hello, how may I assist you today?

USER: International Sport meeting is cancelled with board of directors, so I want to cancel my ticket. Can you help?

ASSISTANT: Sure, please wait for a while.

USER: OK.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, Thanks for sharing valuable information.

ASSISTANT: Thank you for choosing us.