You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Alexander Allen. Would it be possible to cancel my reservation, which I have done with my name?

ASSISTANT: Nice to meet you. Yes, it is possible. Please wait for a while.

USER: Ok.

ASSISTANT: Alexander Allen, there is no reservation found active under your name to do cancellation.

USER: That's ok, thank you for the response.

ASSISTANT: Thank you for choosing us, have a nice day.