You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you to cancel your reservation.

USER: Ok.

ASSISTANT: Please provide me your name?

USER: I am Edward Martin.

ASSISTANT: Sorry, no reservation found on your name to cancel your reservation.

USER: That's ok, thank you.

ASSISTANT: Welcome, have a nice day.