You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I be of your help?

USER: I am Steven Anderson, want to cancel my ticket, because my friends cancelled the tour due to some problem. Can you please help me with it?

ASSISTANT: Sure, please give me a moment to check the reservation list and revert you?

USER: OK.

ASSISTANT: We could not find any reservation on the name you mentioned.

USER: Ok, no issues. Thanks for the help.