You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to cancel my recent reservation, can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: The ticket is under the name Gregory Green.

ASSISTANT: Wait a while, kindly.

USER: Sure, I will.

ASSISTANT: Sorry, there is no reservation found for the user name in our back end to cancel it.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for reaching us.