You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am Virginia Martinez. I am planning to attend a Hockey competition in Las Vegas LAS from SFO. Can you find a flight ticket for me?

ASSISTANT: Sure, can you provide your trip dates?

USER: Ok, my journey dates are on May 19 and return on May 21.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a economy class.

ASSISTANT: There is a connecting flight with number 1007 in airline Spirit, the fare is 200 in economy class. Can I book it?

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

ASSISTANT: Your ticket is booked.

USER: Thank you for your great service.

ASSISTANT: Thank you for opting us.