You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in booking a flight ticket to DFW from SEA?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can I know your trip dates?

USER: My travel dates are from May 03 to May 05.

ASSISTANT: Do you need any connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: I would like return in the afternoon.

ASSISTANT: May I know your name?

USER: I am Steven Collins.

ASSISTANT: There are no flights available on your routes.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.