You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: Donald Jackson here. Due to inconvenience of work, I want to cancel my reservation. Can you please help me for that?

ASSISTANT: Sure, I am here to help you. I will check your reservation status and let you know.

USER: Ok, I will wait.

ASSISTANT: Jackson, I did not find any reservation under your name in our database.

USER: Anyway, thanks for the information.

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