You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Dennis Gonzalez here.

ASSISTANT: Dennis, how can I help you?

USER: One of my friend met with an accident, so, I want to cancel my reservation. Can you help me out?

ASSISTANT: Sorry to hear about your friend. Sure, I can help you to cancel your ticket.

USER: Please check my reservation.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, I could not find a reservation by your name.

USER: Not an issue. Thank you for your time.

ASSISTANT: Thank you for contacting us.