You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to cancel my recent reservation due to sudden cancellation of my trip. Can you help me?

ASSISTANT: Sure, we are glad to help you. Can I have your good name?

USER: Paul Clark here.

ASSISTANT: Sorry, no flights are available on your journey routes.

USER: No problem, thanks for the information.

ASSISTANT: Thank you for choosing us.