You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking the flight ticket from IAD to OAK?

ASSISTANT: Sure, I will help you. May I know your name?

USER: My name is Anna Hall.

ASSISTANT: Thank you. Please let me know your travel dates.

USER: My travel dates are Sept 4 and Sept 6.

ASSISTANT: Ok, is there any class preference?

USER: No.

ASSISTANT: There is a flight with single connection in Southwest airlines and the ticket costs you 100 only in an economy class. Flight departs at 14:00 hours and arrives at 13:00 hours. Can I book the ticket for you?

USER: Please proceed.

ASSISTANT: Your ticket is confirmed successfully with the flight-1003 and have a safe journey.

USER: Thank you for the help.

ASSISTANT: You are most welcome.