You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to book a ticket from DCA to SFO. Could you book a ticket?

ASSISTANT: Sure, I will help you. Please share your planned travel dates.

USER: Travel dates are June, 14 and June, 16.

ASSISTANT: Can I have your good name please?

USER: My name is Charles Hernandez.

ASSISTANT: Do you need a connecting flight?

USER: I prefer connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to return in the evening time.

ASSISTANT: Please hold on a moment.

USER: Sure.

ASSISTANT: I found an economy class in Hawaiian airlines with fare 200 and it has single connection. Can I book your ticket?

USER: Proceed for booking.

ASSISTANT: Ok, your booking is confirmed with flight number 1008.

USER: Thank you.

ASSISTANT: Thank you for approaching us.