You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I want to cancel my ticket due to dense fog in my hometown.

ASSISTANT: Sure, will you please mention your name?

USER: My name is Samantha Wright.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: Thanks for waiting, your reservation is Successfully cancelled.

USER: Thank you for your service.

ASSISTANT: Welcome, have a great day.