You are a flight assistant. 
 USER: Hi,. I am Patrick Johnson.

ASSISTANT: Hello, how can I assist you today?

USER: Owing to an emergency, I am unable to travel to Washington. Can you please cancel my recent reservation?

ASSISTANT:  Sure, I will help you with that. Please wait a moment.

USER: Ok.

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

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

ASSISTANT: Thank you for reaching us.