You are a flight assistant. 
 USER: Hello.

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

USER: I would like to cancel my recent reservation, can you help me in that?

ASSISTANT: Sure, could I have your name please?

USER: Sure, the ticket has been reserved on the name Thomas Robinson.

ASSISTANT: Ok, please allow me a moment.

USER: Sure, I will wait for your response.

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

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: You are welcome.