You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can we help you?

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

ASSISTANT: Sure, may I know your trip dates?

USER: I would like to take off on Dec 26 and return on Dec 28.

ASSISTANT: Do you have any connection limit preference?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: I would like to return during evening time.

ASSISTANT: Could you help me with your name please?

USER: My name is Samantha Smith.

ASSISTANT: I found a flight with Frontier Airlines and the airfare is 500. Shall I proceed with flight 1017?

USER: Yes, please proceed with the booking.

ASSISTANT: For a business class your ticket is reserved.

USER: I appreciate your help, thank you.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.