You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How might I help you?

USER: Owing to an emergency, my live concert got cancelled. so I want you to cancel my recent reservation?

ASSISTANT: Please share your traveling details.

USER: Sure, my name is David Roberts.

ASSISTANT: OK. Sorry there is no reservation on your name.

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