You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Alexander Hall. I would like to book a flight ticket from EWR to LAX. Could you please help me with the booking process?

ASSISTANT: Yes, I can help you. Can you share me your travelling dates?

USER: I am planning to start on 04/15 and return back on 04/17.

ASSISTANT: Give me a moment.

USER: Sure, please check for a direct flight.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: Ok, no problem. Thank you for the information.

ASSISTANT: Thank you for consulting us.