You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, good morning. Welcome to flight booking agency, how may I guide you?

USER: Yes, I would like to make a flight reservation to Las Vegas next month for my brother. Can you help me out?

ASSISTANT: Sure, I am here to help you. Could you please share your travelling dates to search a flight?

USER: Ok, he is planning to travel on 06/15 and intend to return on 06/17. So please book the return ticket too.

ASSISTANT: Sure, can you help me from where he would like to start his journey?

USER: Sure, the departure airport code will be DEN as it is near to us.

ASSISTANT: May I know the airport code of his destination place?

USER: Yes, the destination code is LAS.

ASSISTANT: Could you please share your brother details?

USER: Sure, book the ticket on the name of Donald Hernandez.

ASSISTANT: Thank you for your information.

USER: Please search for the flight with 1 connection as his friend wants to join in middle of the journey.

ASSISTANT: Sure, I have found a connecting flight-1018 of JetBlue airlines. Where price is 300, shall I proceed with booking?

USER: Yes, you can proceed with the booking.

ASSISTANT: Ok, I have confirmed your flight ticket.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us, have a good time.