You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Larry Clark.

ASSISTANT: How can I assist you today?

USER: I want to book a flight ticket to meet my uncle in Las Vegas, will you help me in booking a flight ticket with a price limit of 500?

ASSISTANT: I am very happy to help you in booking, can I know your travelling dates?

USER: I want to travel on 04/14, and need to catch return flight on 04/16.

ASSISTANT: Please share me your travelling airport codes.

USER: It is a round trip to LAS.

ASSISTANT: There is a flight with the price of 100 and one connection. Can I proceed to booking?

USER: Proceed with the booking.

ASSISTANT: Your ticket is booked in economy.

USER: Thanks for the help.

ASSISTANT: Thank you for reaching us.