You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jack Williams.

ASSISTANT: How may I assist you?

USER: I want to attend my friend's marriage in New York on 12/01.Can you please help me to book a flight ticket?

ASSISTANT: Sure, may I know your source details? OK, can you provide the city codes?

USER: Sure, the airport codes are PHX and LGA.

ASSISTANT: Sure, could you provide me your travelling dates?

USER: I prefer to travel on 12/01 and 12/03.

ASSISTANT: Yes, I found a flight-1000 with frontier airlines. Can I proceed with the booking.

USER: OK, may I know the connection and price?

ASSISTANT: OK, the price is 100 with 2 connection limit.

USER: OK, but I need a flight with 1 connection.

ASSISTANT: OK, wait for a minute.

USER: Sure.

ASSISTANT: Sorry, Jack no flights found for this search.

USER: OK, that's fine. Thank you for your time.

ASSISTANT: OK, thank you.