You are a flight assistant. 
 USER: Hello, I am Donald Lee.

ASSISTANT: Hello. How may I render you today?

USER: I wish to watch Metropolitan museum at New York, EWR.Can you please reserve a  connecting flight ticket?

ASSISTANT: Sure, I am perky to help you. Will you please mention the travelling dates?

USER: My depart is on 08/25 and return on 08/27.

ASSISTANT: Do you have any requirements?

USER: I can afford up to 100.

ASSISTANT: Ok. Where are you heading from?

USER: New York, JFK is my source airport.

ASSISTANT: Ok. Thanks for sharing your details. Sorry to inform you that, no flights run your routes on particular day.

USER: It's ok, no problem. Thank you for your kind information.

ASSISTANT: Thanks for opting us, Have a great day.