You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Nancy Johnson here.

ASSISTANT: How can I help you?

USER: Can you please help me in booking my flight from EWR to reach JFK?

ASSISTANT: Sure, I will help you. May I know your planned journey dates?

USER: Sure, my travel dates are Sep 17th and 19th.

ASSISTANT: Let me know your connection limit.

USER: I need a single connecting flight.

ASSISTANT: Which class would you prefer for your journey?

USER: I am comfortable in any class.

ASSISTANT: Do you have any other requirements?

USER: My depart time must be in the afternoon and I would like to return in the morning.

ASSISTANT: Ok, wait for a moment.

USER: Ok, sure. I will wait for your response.

ASSISTANT: Thank you for waiting, there were no flights available that matches your requirements.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for approaching us.