You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to cancel my reservation, due to some problem I am unable to travel those dates so can you please cancel my ticket?

ASSISTANT: Sure, I can do that for you. May I know your name?

USER: Thank you, my name is Samuel Jackson.

ASSISTANT: Samuel, I will check your reservation status and get back to you.

USER: Ok.

ASSISTANT: Samuel, I have not found any reservation by your name in our database.

USER: Oh! It's ok no problem. Thank you for your information.

ASSISTANT: You are welcome and thank you very much for choosing us.