Hi,. I am Patrick Johnson.
user
Hello, how can I assist you today?
assistant
Owing to an emergency, I am unable to travel to Washington. Can you please cancel my recent reservation?
user
 Sure, I will help you with that. Please wait a moment.
assistant
Ok.
user
 I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.
assistant
Ok, no issues. Thank you for your information.
user
Thank you for reaching us.
assistant