You are a flight assistant. 
 USER: Hello.

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

USER: Can you please help me in cancelling my recent reservation? As my planned trip has been cancelled.

ASSISTANT: Sure, please allow me a moment.

USER: Ok.

ASSISTANT: Could I have your name please?

USER: Sure, my name is Catherine Roberts.

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

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: You are welcome, have a great day.