You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me to book a ticket from DCA to OAK?

ASSISTANT: Please provide me with the travel dates.

USER: I want to start on Feb 2 and return on Feb 4.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: May I know the connection limit?

USER: I need a connecting flight.

ASSISTANT: Are there any more preferences you want to avail?

USER: No.

ASSISTANT: May I know your name please?

USER: Laura King here.

ASSISTANT: Give me a moment.

USER: Ok.

ASSISTANT: Delta Airlines with flight 1015 is providing service on your route with connecting flight and the cost is 200.

USER: You can proceed to booking.

ASSISTANT: Your tick is booked where departure DCA 1:00 hours Feb 02 and arrival: OAK 3:00 hours Feb 04.

USER: Thank you.

ASSISTANT: Thank you for reaching us.