You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you at this moment?

USER: I need to book a flight ticket from EWR to OAK, Can you please help me for booking?

ASSISTANT: Sure, we are ecstatic to help you. May I know on which dates you are planning to start and return?

USER: I would like to travel on 10/19 to return on 10/21.

ASSISTANT: Do you prefer any way station in between journey?

USER: I need a connecting flight.

ASSISTANT: May I know your good name please?

USER: Brain Lewis here.

ASSISTANT: Is there any other specifications regarding your journey?

USER: Yes, I would be return on morning.

ASSISTANT: Ok, please wait a moment. let me search a flight for you.

USER: Sure.

ASSISTANT: Thanks for waiting, there are no flights available at this moment matching your particulars.

USER: Ok, no problem. Thanks for your information.

ASSISTANT: Thank you for your presence. We hope to serve you again.