You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you today?

USER: I am Alexander Perez. I would like to attend Global Environmental Conference in Benaroya hall, which is at Seattle, SEA. Can you please help me in booking from New York, JFK?

ASSISTANT: Sure, may I know your journey dates?

USER: My departure and arrival dates are, 06/09 and 06/11.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between journey.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.