You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how can I assist you today?

USER: Please cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, I will help you with that. May I know your name to check your details in our database?

USER: My name is Richard Nelson.

ASSISTANT: Please wait a while.

USER: Ok.

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

USER: Thank you.

ASSISTANT: Thank you for reaching us.