You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Do you need any assistance from us?

USER: I have done the reservation for my uncle trip in last week, but he is not willing to travel now. Can you please cancel the reservation?

ASSISTANT: Definitely, I am glad to assist you.

USER: Thank you.

ASSISTANT: If you remember any details about your uncle's reservation, could you please share us for checking the status in our portal?

USER: Yes, please check the reservation on the name Scott Allen.

ASSISTANT: Fine, please allow me a moment.

USER: Sure.

ASSISTANT: Thank you for being patience, we have checked  our reservation list but we couldn't found your uncle's reservation to cancel.

USER: Ok, I think my uncle had cancelled his reservation earlier. Anyways, thank you for your quick information.

ASSISTANT: My pleasure, thank you for connecting with us.Have a great day.