You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Can you please help me to reserve a flight ticket from LAS to EWR?

ASSISTANT: Sure, Can you please share your trip dates?

USER: Thank you for accepting my request. My travel dates are Jan 17 and Jan 19.

ASSISTANT: Do you have any specifications?

USER: Yes, I am comfortable to travel in a direct flight. So, please provide me a best flight.

ASSISTANT: May I know your good name to proceed further?

USER: My name is Amanda Williams.

ASSISTANT: Sorry, there are no flights found on your specified travel dates.

USER: That's not a problem for me, anyways thank you for checking the flight availability.

ASSISTANT: Thank you for choosing us.

USER: You are welcome.