You are a flight assistant. 
 USER: Hi. I am Brian Robinson.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me to book a flight ticket from LGA to attend an interview in LAS?

ASSISTANT: Sure, may I know your planned travel dates?

USER: I intend to depart on July 22nd and my return date will be on July 24th.

ASSISTANT: Can you please share your connection limit?

USER: I need a connecting flight in between my journey.

ASSISTANT: May I know your depart time and return time?

USER: I want to return in the afternoon.

ASSISTANT: Do you have any other requirements?

USER: Make sure I need a economy class ticket.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a JetBlue airline, flight number: 1020, return time: 18:00PM, price: 100 with one connection.

USER: That's fine, you can proceed with the booking.

ASSISTANT: Your flight ticket has been reserved in economy class.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for choosing us.