You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Sarah Carter. I am planning to attend music concert at SEA, can you please help me with booking a flight ticket from LAS?

ASSISTANT: Sure, can you provide your journey dates?

USER: Sure, I would like to take off on 02/06 and return back on 02/08.

ASSISTANT: Do you need any specifications?

USER: Yes, make sure that the price limit should not exceed 200.

ASSISTANT: There is a direct flight with number 1006 in airline UA, the fare is 100. Can I book it?

USER: Yes, please proceed with the booking.

ASSISTANT: Your ticket is booked.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.