You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight from IAD to meet my friend at OAK. Can you book a flight for me?

ASSISTANT: Sure, I can help you with that. May I know your travel dates please?

USER: I will travel on Dec 12 and return on Dec 14.

ASSISTANT: Do you need break in between your journey?

USER: Yes, I prefer a connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: I do not have any other requirement.

ASSISTANT: May I know your good name please?

USER: My name is Janet Baker.

ASSISTANT: Southwest airlines is providing a single connected flight with ticket fare of 100, shall I proceed for booking?

USER: Please proceed with booking.

ASSISTANT: I have successfully booked you an economy class ticket in flight-1019, have a safe journey.

USER: Thank you for helping me.

ASSISTANT: Thank you for choosing us.