You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Elizabeth Walker.

ASSISTANT: How may I assist you at this moment? Glad to meet you Walker.

USER: I want to book a ticket from IAD to CLT to attend seminar, can you help me in booking?

ASSISTANT: Sure, can you provide me your travel dates means it's easy to search available flight for you?

USER: I am departing on 06/23 and return on 06/25.

ASSISTANT: Wait for a moment, let me check.

USER: Sure, take your time.

ASSISTANT: Do you want direct or connecting flight? Because I found 2 connecting flight.

USER: Please proceed for booking. I need a flight with connection limit 1.

ASSISTANT: Yes, I found connecting flight for your journey. Your ticket has been booked with your name and price is 100.

USER: Please proceed for booking.

ASSISTANT: Thanks for choosing our service.