You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I help you?

USER: I am Alexander Johnson. I want to cancel my recent reservation. Could you help me with that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no reservation on your name.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you.