You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. May I know your good name, Please?

USER: I am Mark Thompson.

ASSISTANT: How may I help you for the day?

USER: I am planning to watch live cricket match, help me in booking my flight ticket with single connection.

ASSISTANT: Sure. May I know your airport codes, Please?

USER: My airport codes are from DC-IAD to NY-EWR.

ASSISTANT: May I know your travel dates, Please?

USER: My travelling days are from 09/19 to 09/21.

ASSISTANT: May I know, What is your price limit?

USER: I have price limit of 5000.

ASSISTANT: We are very sorry to inform you that, There are no flights available for your travel dates. Thank you, For making an inquiry with us regarding ticket booking.

USER: That's fine.

ASSISTANT: Have a wonderful day.

USER: Thank you for your support.