You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I would like to cancel the existing reservation because the planned meeting was cancelled for now. Can you please help me to cancel the ticket?

ASSISTANT: Sure, we are here to help you.

USER: Thank you for accepting my request.

ASSISTANT: Sorry, no active reservation was found on your name in our data base.

USER: Ok, thank you for checking my ticket status.

ASSISTANT: Welcome, thank you for reaching us.

USER: My name is Sandra Jones. You are welcome.