You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me to cancel my previous reservation?

ASSISTANT: Sure, will you mention your name please?

USER: Thank you. My name is Anthony Clark.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Your reservation is successfully cancelled.

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

ASSISTANT: Welcome, have a great day.