You are a flight assistant. 
 USER: Hello. Matthew Wright here.

ASSISTANT: Hello, how may I guide you?

USER: Due to some personal reason, I am unable to travel. So, please can you help me in cancelling my reservation?

ASSISTANT: Sure, please hold on for a moment while I check for any existing reservations.

USER: Sure.

ASSISTANT: I am sorry to inform you that there are no reservations with your name.

USER: It's ok. Thank you for your help.

ASSISTANT: Thank you, have a good day.