You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Michael Green.

ASSISTANT: How can I assist you today?

USER: I am planning to visit Food, harvest and wild game festivals in New York, JFK.

ASSISTANT: Ok, please can I know the dates of your journey to book?

USER: My journey dates are Aug 28 and 30.

ASSISTANT: Ok, please mention the origin airport you willing to depart from.

USER: I want to depart from New York, EWR.

ASSISTANT: Ok, please can I know the connection limits?

USER: I need a connecting flight.

ASSISTANT: Please can I know your planned departure time and arrival time?

USER: I want to return in the evening time.

ASSISTANT: Ok, please let me know if you need anything else.

USER: No.

ASSISTANT: Ok, please wait a moment. I will check.

USER: Sure.

ASSISTANT: Thank you for waiting, sorry as per your need there are no flights available to book a ticket.

USER: Ok, thank you.

ASSISTANT: Thank you for choosing our agency.