You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I be of your help?

USER: I am an artist and I want to visit DCA, can you please book a flight from OAK?

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

USER: Thank you.

ASSISTANT: Please let me know if you need a connecting flight.

USER: No, I prefer to fly in direct flight.

ASSISTANT: Kindly share if you have any class preference.

USER: No.

ASSISTANT: Could you please help me by travelling dates to proceed further?

USER: My travel dates are April 25th and 27th.

ASSISTANT: May I know is there any other comforts in between your journey?

USER: I want to depart in the evening time.

ASSISTANT: Before checking, I need know your name. Can you provide it?

USER: My name is Jeffrey Carter.

ASSISTANT: Thank you for sharing your journey details, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, we found an economy class ticket providing by Southwest airline with the flight number-1026. Shall I book the ticket?

USER: Please proceed with the booking.

ASSISTANT: Your ticket has been confirmed with the direct flight and you can collect your ticket at the time of check IN.

USER: Thank you for your help with the booking.

ASSISTANT: It's pleasure to serve you. You're welcome.