You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I guide you?

USER: I would like to book a flight ticket to Seattle to take a part in scuba driving, could you please help me to book a flight ticket with single connection?

ASSISTANT: Sure, we are perky to assist you. May I know your planned travel dates?

USER: I need to depart on June 19th and my return date will be on June 21st.

ASSISTANT: May I know your journey points?

USER: My source airport code is DCA and my destination airport code is SEA.

ASSISTANT: Can I know your name?

USER: I am Catherine Thompson.

ASSISTANT: Do you need a break in the middle of your way?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Thank you for providing all necessary details, please hold a moment, let me check with the airlines and let you know.

USER: Sure.

ASSISTANT: We found a Delta airline, flight number:1028 and the price is 100.

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank  you for choosing us.