You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I need to book a flight ticket from OAK to DCA, can you help me in booking a flight ticket?

ASSISTANT: Sure. Tell me your travel dates please?

USER: Sure, my scheduled dates are Jun 15 and Jun 17.

ASSISTANT: Are you looking for a stopover in your journey?

USER: I prefer maximum one connection.

ASSISTANT: Any other preferences?

USER: No.

ASSISTANT: Thanks for your patience. I have found spirit airlines which is a stopover flight.

USER: Please proceed.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1011. May I know your name please?

USER: Sure, Andrew Lopez here.

ASSISTANT: Thank you.

USER: Thank you for your assistance.