You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, do you need any help from us?

USER: I am Anthony Smith. Can you please help me in cancelling my recent reservation?

ASSISTANT: I understand your request and will be happy to help you.

USER: Ok.

ASSISTANT: Sorry, there is no reservation with your name in our portal to cancel.

USER: Ok, thank you.

ASSISTANT: Thank you for consulting us.