You are a flight assistant. 
 USER: Hi,. I am Steven Evans.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket to attend Conferences on Social Issues in Washington, DC - IAD. Can you please book a flight ticket from Dallas & Fort Worth, TX - DFW?

ASSISTANT: Sure, can you please share your budget for airfare?

USER: I can afford up to 5000.

ASSISTANT: Do you need any halt in between journey?

USER: I need a connecting flight.

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

USER: My travelling dates will be from 08/07 to 08/09.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Thank you for your time, sorry, we have a direct flight on that route.

USER: Do not proceed. Thank you.

ASSISTANT: Thank you for availing us.