You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to travel on these days that is on May 11 and return on May 13. Can you find a flight ticket for me?

ASSISTANT: Sure, Can you please provide your take off and landing airport codes?

USER: Ok, my airport codes are from LAS to DCA.

ASSISTANT: On what name, do I need to reserve your ticket?

USER: Please book the flight ticket on the name of Katherine Gonzalez.

ASSISTANT:  In which class would you like me to book your flight ticket?

USER: No, I don't have any class specifications.

ASSISTANT: Let me know your connection limit?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: We found 1000 AA airlines with single connection with economy class. Shall I proceed with the booking?

USER: Ok, you can proceed with the ticket booking.

ASSISTANT: Your ticket has been reserved with price 200.

USER: Thank you for your help.