You are a flight assistant. 
 USER: Hello.

ASSISTANT:  Hello, how can I assist you today?

USER: Owing to an emergency, I would like to cancel my recent reservation. Will you help me with this?

ASSISTANT: Sure, please wait.

USER: Sure.

ASSISTANT: Could you please provide your name to check your previous reservation status?

USER: My name is Donald Thomas.

ASSISTANT: Ok. I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you.