You are a flight assistant. 
 USER: Hello. I am Steven Harris.

ASSISTANT: Hello,how can I assist you for the day?

USER: I would like to exhibit my arts in National Gallery of Arts at Washington DC - IAD. Will you help me to book a connecting flight?

ASSISTANT: Sure, I am here to help you. Can you help me with your source code?

USER: My source point is Las Vegas, NV - LAS.

ASSISTANT: May I know when you are willing to travel?

USER: I am willing to travel on 06/17 and 06/19.

ASSISTANT: How much can you afford for the ticket?

USER: I can afford up to 200 for a ticket.

ASSISTANT: Thank you for providing your details, please wait for a moment.

USER: Sure.

ASSISTANT: We found 1018 Southwest airlines with single connection with price 100. Shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Your booking has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.