You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sandra Lewis here.

ASSISTANT: How can I assist you?

USER: Can you please check for the flights from SEA to ORD?

ASSISTANT: Sure, can I know the travel dates please?

USER: My journey dates are from Dec 18 to Dec 20.

ASSISTANT: May I know the depart and return timings please?

USER: My depart time is in afternoon.

ASSISTANT: Can I know the connection limit please?

USER: I need 1 connecting flight.

ASSISTANT: Do you have any requirements?

USER: No, thanks for asking.

ASSISTANT: There is a connecting flight at 16.00 PM in UA airline, can I book it?

USER: Ok, please book it.

ASSISTANT: Your ticket has been booked with flight number 1025.

USER: Thank you for helping me with booking.

ASSISTANT: Thank you for approaching us.