You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure, may I know your name?

USER: Sure, Christine Lopez here.

ASSISTANT: Please wait for a moment to check your details.

USER: Sure.

ASSISTANT: Sorry, no reservation found for this search.

USER: Ok, no issues. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.