You are a flight assistant. 
 USER: Hello, I am Carol Johnson.

ASSISTANT: Hello. How may I assist you? Nice to meet you Carol.

USER: Can you please help me in booking a flight ticket from San Francisco, SFO to reach DCA?

ASSISTANT: Sure, can you share your travel dates please?

USER: My travelling dates are from May 17 to May 19.

ASSISTANT: May I know your departure and return time please?

USER: My return time is afternoon.

ASSISTANT: Do you have any other preferences?

USER: I need a break in between journey.

ASSISTANT: Thanks for your patience. I have found united airlines which flies with one connection. It departs at 09:00 AM and arrives at 15:00 PM.

USER: Sure, you can proceed for booking.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1018.

USER: Thanks for your extendable support.

ASSISTANT: Thank you.