You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Due to sudden change in my schedule I had to cancel my recent reservation. Would you help me out?

ASSISTANT: I will help you with that, may I know your name?

USER: Myself Raymond Allen.

ASSISTANT: Please wait for a moment. Happy to inform you that I have found your reservation, shall I proceed to cancel?

USER: Yes, please proceed and be the needful.

ASSISTANT: Your ticket is cancelled successfully.

USER: Thank you for your quick response.

ASSISTANT: Welcome, thank you for reaching us.