You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Sharon Lopez. I have a plan to visit San Francisco. Can you please book me a flight ticket to visit Twin Peaks?

ASSISTANT: Sure Lopez, I will help you with that. Can I have your travel dates please?

USER: I want to travel on 12/11, and need to catch return flight on 12/13.

ASSISTANT: Ok Lopez, please let me know airport codes of your journey locations.

USER:  I need to leave from my nearest airport DTW to reach SFO.

ASSISTANT: Ok Lopez, please wait a moment to check flight availability.

USER: Sure.

ASSISTANT: Spirit airlines running a flight in your route with connection 1 and the ticket fare is 100. Shall I proceed with booking?

USER: Proceed with the booking.

ASSISTANT: Ok Lopez, your ticket booking has done and the flight number is 1011.

USER: Thanks for the help.

ASSISTANT: Thank you for choosing us, have a great journey.