You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you help me to book a flight ticket from OAK to DFW?

ASSISTANT: Sure, I will help you. Can I have your planned travel dates please?

USER: My travel dates are Apr 06 and Apr 08.

ASSISTANT: May I know your name please?

USER: I am Rachel King.

ASSISTANT: Do you need a connecting flight?

USER: Yes, I prefer connecting flight for this trip.

ASSISTANT: Do you have any other specifications?

USER: No, thanks for asking.

ASSISTANT: I found an economy class in Delta airlines with fare 100 and it is a connecting flight. Can I book your ticket?

USER: Please proceed to book my flight ticket in this airlines.

ASSISTANT: Ok, your booking is confirmed with flight number 1006.

USER: Thank you.

ASSISTANT: Thank you for choosing us.