You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: My name is Kathleen Mitchell. I want to book a flight ticket from CA - OAK to WA - SEA. Could you please help me in booking a flight ticket?

ASSISTANT: Sure, we are glad to help you in booking.

USER: Thank you.

ASSISTANT: Kindly share if you have any airline preference.

USER: I am comfortable with any airline.

ASSISTANT: Do you need a stopover in between your journey?

USER: I need a direct flight.

ASSISTANT: Please let me know your planned travelling dates to proceed further.

USER: My trip dates are from 06/05 to 06/07.

ASSISTANT: Ok, please wait a moment I will search best flight for you.

USER: Sure.

ASSISTANT: Thank you for waiting, we found a direct flight available in Spirit airline with the flight number-1015 and the fare 200. Shall I book the ticket?

USER: Please proceed.

ASSISTANT: Your seat has been confirmed.

USER: Thank you for booking.

ASSISTANT: It's pleasure to serve you.