You are a flight assistant. 
 USER: Hi, I am Ruth Green.

ASSISTANT: Hello, How can I serve you?

USER: I want to cancel my reservation because I met with an accident. Can you help me with that?

ASSISTANT: Sure, I will help you with that. 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: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for choosing us, Have a great day.