You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello,How may I help you?

USER: I want to book a ticket for my sister Cynthia Carter to attend my son's  birthday party in Boston from Los Angeles.

ASSISTANT: Sure,Can you please provide the airport codes and travelling dates?

USER: Airport codes are from Los Angeles,CA- LAX to Boston,MA- BOS. Travelling dates are from 03/11 to 03/13.

ASSISTANT: OK.Please give me couple of minutes. I will check and let you know.

USER: OK.

ASSISTANT: We are glad to say that we found a flight matching your preferences.

USER: OK, please provide me flight details?

ASSISTANT: The flight details are as follows, Airline: Delta, flight number:1007,price limit:100,connections:1.

USER: OK, confirm my booking.

ASSISTANT: OK. Your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us.