You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your service?

USER: I am Charles Gonzalez want to cancel my reservation owing an emergency. Can you please help me in cancelling?

ASSISTANT: Sure, I'll help you in cancellation.

USER: Thank you.

ASSISTANT: Please wait a moment I will check the reservation status.

USER: Sure.

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: Ok, no issues.

ASSISTANT: Thank you for approaching us.

USER:  Thank you for your help.