You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Justin Collins. Due to some emergency I need to cancel my recent reservation.

ASSISTANT: Sure Justin, I will help you with that.

USER: Can you help me cancelling my reservation?

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

USER: Sure.

ASSISTANT: Sorry Collins, no reservation has found under your name to cancel.

USER: No problem, thank you for the information.

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