You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you today?

USER: Owing an emergency, I want to cancel my recent reservation. Can you please help me out?

ASSISTANT: Sure, we are here to help you with this. Please share your name to check the reservation list.

USER: My name is Jason White.

ASSISTANT: Ok, please wait a minute I will get back to you with the present status.

USER: Sure, I will wait for your information.

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: That's ok, thank you for checking.

ASSISTANT: Thank you for choosing us.