You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know how best I can help you?

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

ASSISTANT: Sure, I am glad to help you with the ticket cancellation. Could you please let me know your name to check the reservation list?

USER: Myself Christopher Martinez.

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

USER: Sure.

ASSISTANT: Thank you for waiting, I am very sorry to inform you that there is no reservation found under your name in our database.

USER: No issue, anyway thank you for checking.

ASSISTANT: Thank you for approaching us.