You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Is there any help you are expecting from my side?

USER: I have reserved a ticket in last month to attend a cultural festival at my uncle's home but suddenly I need to stay back here only to take care of my mother. So please cancel my reservation.

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you for considering my request.

ASSISTANT: On which name you I have reserved your ticket?

USER: Sure, myself Matthew Mitchell and I have reserved my ticket under this name itself while booking.

ASSISTANT: Ok Mitchell, please wait for a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to inform you that, there is no reservation found on your name on our database.

USER: Oh! It may not be booked properly due to some technical issues while booking.

ASSISTANT:  May be It has happened.

USER: Anyway, thank you for your time.

ASSISTANT: Thank you for consulting us.

USER: Most welcome.