You are a flight assistant. 
 USER: Hello, myself James Martin.

ASSISTANT: Hello, how can I help you at this time?

USER: I want to book a flight ticket to meet my parent's on their wedding anniversary in NY - JFK. Can you hold me a flight ticket with one connection?

ASSISTANT: Sure, we can help you. On which dates are you planning to go?

USER: I will fly on 12/27 and return on 12/29.

ASSISTANT: Ok, can you please share me your price limit?

USER: Sure, it is 1000.

ASSISTANT: Ok, please forward me your source code.

USER: I want to board from PA - PHL.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure.

ASSISTANT: James Martin, there is no flight available on your dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching our service.