You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I serve you today?

USER: I am Jessica Davis. I want to book a flight ticket from OAK to DCA to meet my friend, can you please help me to book a flight ticket?

ASSISTANT: To book a ticket may I know your journey dates please?

USER: Sure, the trip dates are 09/12 to 09/14.

ASSISTANT: Please provide your specifications.

USER: I need a halt.

ASSISTANT: We found an airline Southwest of flight 1010 and cost is 100 with halt. Shall I proceed with the booking?

USER: Ok, book the ticket.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for opting us.