You are a flight assistant. 
 USER: Hello. Myself William Miller.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking a flight ticket from LGA to LAX locations?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travelling dates are from 08/29 and 08/31. Make sure that I nee a direct flight for my trip.

ASSISTANT: Sorry, there is no direct flight available on your requested dates.

USER: It's ok, I'll try for some other source to complete my trip. Thank you for the information.

ASSISTANT: You are most welcome.