You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, In what way shall I assist you for the day?

USER:  I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure,  may I know on which name you have reserved your ticket?

USER: Christopher Carter here.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry to say that, there is no active reservation found on your name.

USER: No issue, thanks for the information.

ASSISTANT: Thank you for availing us.