You are a flight assistant. 
 USER: Hi,. I am Nicholas Jones.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket to attend Fun Fair in New York, NY - EWR.

ASSISTANT: Ok.

USER: Can you hold me a connecting flight?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: May I know from where you want to board?

USER: I want to fly from Chicago, IL - ORD.

ASSISTANT: How much you can afford for this journey?

USER: My budget is 5000.

ASSISTANT: Kindly, share your journey dates to proceed further.

USER: I want to start my journey on 02/11 and ends on 02/13.

ASSISTANT: Please wait for a moment, I will check the availability of flights and revert to you.

USER: Sure.

ASSISTANT: Thank you for waiting, there is a flight available with AA airline, flight number 1004 with fare 200 and a lay by. Shall I proceed to book?

USER: That's perfect for me, please book it.

ASSISTANT: Your reservation has been done.

USER: Thanks for your assistance.

ASSISTANT: Thank you for opting us.