You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a ticket from LAX to EWR. Could you book ticket?

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

USER: Travelling dates are Mar, 23 and Mar, 25.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I prefer connecting flight.

ASSISTANT: Do you have any particular time for depart and return?

USER: I would like to depart in the morning.

ASSISTANT: May I know your good name please?

USER: My name is Debra Martinez.

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

USER: Thank you.

ASSISTANT: Thank you for approaching us.