You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What help do you need from our agency?

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

ASSISTANT: Sure, I will help you in cancelling the ticket reservation. Could you please tell me your name to check the ticket status?

USER: Check under the name Patrick Martin.

ASSISTANT: Ok, please give me a minute.

USER: Sure.

ASSISTANT: Sorry to inform you, there is no reservation found with your name to cancel the ticket.

USER: That's ok, thank you.

ASSISTANT: You are welcome. Thank you for approaching us.