You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dennis Brown.

ASSISTANT: Is there any help that you are looking from my side?

USER: As my wife is met with an accident, I want to cancel my reservation. Can you help me with it?

ASSISTANT: Sure, I am here to help you. Let me check your ticket, please wait.

USER: Sure.

ASSISTANT: I unable to find your previous ticket booking to cancel it.

USER: No problem, ,thank you for your assistance.

ASSISTANT: Thank you for reaching us, have a nice day. You are welcome.