You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I want to book a ticket from OAK to AUS to attend seminar, can you help me in booking?

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

USER: I am departing on Sep 20 and return on Sep 22.

ASSISTANT: Do you have any requirements?

USER: I prefer a connecting flight.

ASSISTANT: May I know your name please?

USER: My name is Jessica Evans.

ASSISTANT: There is a connecting flight in Delta airline, can I book it?

USER: Please proceed  for booking.

ASSISTANT: Your ticket has been booked with flight number 1016.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.