You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you now?

USER: I want to attend a Seminar in OAK. Can you please help me for booking the flight ticket from MSP?

ASSISTANT: Sure, I am happy to help you with that. Can I have your travel  dates please?

USER: My airport codes are July 19 and July 21.

ASSISTANT: Ok, please let me know your  preferable airlines.

USER: I prefer normal cost airline.

ASSISTANT: Do you have any other specifications?

USER: I prefer single connecting flight.

ASSISTANT: Can I have your good name please?

USER: My name is Nancy Davis.

ASSISTANT: Delta airlines running a flight in your  route with connection 1 and the ticket  fare is 200. Shall I proceed with booking?

USER: Please proceed for booking the flight ticket.

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

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.