You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to book a ticket from ORD to CLT. Can you please help me out?

ASSISTANT: May I know your desired travel dates please?

USER: I am planning to travel on Jan 19 and return back on Jan 21.

ASSISTANT: Do you have any specifications?

USER: Yes, I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name please?

USER: My name is Edwards Nelson.

ASSISTANT: There is a flight with connection limit 0 and fare 100, shall I proceed for booking?

USER: That's fine, please proceed the booking.

ASSISTANT: Your ticket is booked, flight number 1019.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.