You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I guide you for today?

USER: I want to cancel my recent reservation because my health is no good. So, I am unable to travel. Can you please help me in cancelling?

ASSISTANT: I am here to help you about that.

USER: Thank you for accepting my request.

ASSISTANT: Can you mention your name to check the existing reservations under your name?

USER: Ok, my name is Edward White.

ASSISTANT: I am happy say White that I have found your reservation, as per your interest I have cancelled your reservation.

USER: That's great, thank you for your kind help.

ASSISTANT: You are most welcome.