You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Can you help me in cancelling my recent reservation, as my exam is postponed?

ASSISTANT: Sure, I am here to help you with that, can I know your good name to proceed further?

USER: Check under the name Anna Thompson.

ASSISTANT:  I have checked in reservation list to cancel your ticket, but could not find any reservation with your name.

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.