You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How shall I assist you?

USER: I need to book a flight ticket from New York to attend a live concert which is held on 04/11, can you help me in booking flight ticket?

ASSISTANT: Please provide your travelling codes?

USER: Yes, I would like to travel from LGA to EWR.

ASSISTANT: Please specify your departure date?

USER: It is on 04/13.

ASSISTANT: Any specifications?

USER: Yes, my price should be under 500. I need a connection in between.

ASSISTANT: Please provide your name?

USER: Yes, you can call me as Jonathan Smith.

ASSISTANT: Connecting flight 1029 can be booked with airline Delta, price 100.

USER: Ok, please proceed with this booking.

ASSISTANT: Ticket is booked.

USER: Thank you.

ASSISTANT: Thanks.