You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to book a flight ticket to OAK from EWR, can you please help me out?

ASSISTANT: Sure, can I have your trip dates?

USER: Sure, my trip dates are July 16 and July 18.

ASSISTANT: Do you need any connection limit?

USER: I am looking for a flight with 1 connection.

ASSISTANT: Could you share your timings?

USER: My return time must be in afternoon.

ASSISTANT: Do you need any other specifications?

USER: Yes, I prefer normal cost airline.

ASSISTANT: May I know your name?

USER: My name is Katherine Gonzalez.

ASSISTANT: There are no flights available on your routes.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.