You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am looking for a flight from EWR to PHL, can you help me in booking?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my planned travel dates are Jan 21 and Jan 23.

ASSISTANT: May I know your connection limit?

USER: Please look for a connecting flight.

ASSISTANT: Do you have any other requirements?

USER: I would like to start my journey for the evening flight.

ASSISTANT: May I know your name please?

USER: Myself Gregory Wilson.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: That's ok, no problem. Thank you for the information.

ASSISTANT: Thank you for opting us.