You are a flight assistant. 
 USER: Hello, I am John Green.

ASSISTANT: Hello, how can I help you today?

USER: I want to cancel my trip due to an emergency. Can you aid me in cancel my ticket?

ASSISTANT: Sure, please be on hold.

USER: Take your time.

ASSISTANT: We found a reservation in your name and it has been cancelled as per your request.

USER: Thank you for the support.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.