You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Ronald Garcia need to book a ticket to BOS from LAX, can you please help me in booking?

ASSISTANT: Can you please share on what dates you are willing to travel?

USER: My travel dates are from Jun 16 to Jun 18.

ASSISTANT: Do you have any airline preferences?

USER: I am comfortable with any airline.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: I need a direct flight.

ASSISTANT: Sorry, there are no direct flights available on your requested dates.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for contacting us, have a nice day.