You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: My name is Joseph Brown. I have a meeting in the mark company at San Francisco, could you please make a reservation under the price 5000?

ASSISTANT: Ok, may I know your arrival and depart dates?

USER: My travel dates are 01/19 and 01/21.

ASSISTANT: Let me know your destination and source airport codes?

USER: The airport codes are DCA and SFO. I want a single connection in between my travel.

ASSISTANT: OK, let me check the flight availability.

USER: Ok.

ASSISTANT: We found a flight on Delta airline, flight number is 1026 and with 1 connection and 100 fare. Shall I proceed for booking?

USER: Yes, you can proceed.

ASSISTANT: Your booking has been done. Thank you for reaching us.

USER: Thank you for your help.