You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Samuel Carter.

ASSISTANT: How may I assist you at this moment?

USER: Please cancel my recent reservation, since our educational tour has been cancelled due to budget problem. Can you please help me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you for accepting my request.

ASSISTANT: Please wait a moment to check your previous reservation.

USER: Ok, I will wait for your information.

ASSISTANT: We regret to inform you that, there is no reservation on your name in our records.

USER: Not an issue, anyway thank you for your information.

ASSISTANT: Thank you for reaching us, hope you have a great day.