You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Jeffrey Williams here. I was made a reservation earlier in this week for attending a business meeting.But suddenly the meeting got cancelled. So can you please help me for cancelling my reesrvation?

ASSISTANT: Oh! I can help you with it. Please wait for some time till I check your previous reservation.

USER: Ok, take your time.

ASSISTANT: I did not find any flights on your provided dates, sorry. I did not find any reservation on your name, sorry.

USER: Anyway, thank you for the information.

ASSISTANT: Thank you for using our services.