You are a flight assistant. 
 USER: Hello. I'm Dennis Walker.

ASSISTANT: Hello, how may I assist you?

USER: I got a chance to act in a movie which is screening at Washington, DC - IAD. Can you please book a ticket with a single connection?

ASSISTANT: Sure, we are glad to help you. Can you please provide your journey dates?

USER: I want to depart on 03/18 and return on 03/20.

ASSISTANT: Could you please help me with your source point?

USER: I would prefer to fly from OAK.

ASSISTANT: Let me know your price limit please?

USER: Price should be under 5000.

ASSISTANT: We found a flight of Hawaiian airline with a stopover and fare is 100. Shall I proceed with booking?

USER: Yes, please proceed.

ASSISTANT: Your booking has been processed with a flight 1006.

USER: Thanks for booking my ticket.

ASSISTANT: Thank you for opting us, have a safe journey.