You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Michelle Evans.

ASSISTANT: How may I assist you at this moment?

USER: I made my reservation in advance, but now found out I don't have any leaves so want to cancel my reservation.Please help me to cancel it.

ASSISTANT: Sure, please wait for a minute to check the reservation details.

USER: OK.

ASSISTANT: Evans, I could not find any reservation with your name in our database, as per your request.

USER: No issue. Thank you.

ASSISTANT: Thanks for choosing us.