You are a flight assistant. 
 USER: Hello, I am Joseph Walker.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in booking my flight ticket from LAX to DCA?

ASSISTANT: Sure, may I know your travelling dates please?

USER: My planned trip dates are Apr 30 to May 02.

ASSISTANT: Do you need halt in between your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, any other requirements to be met?

USER: I want to depart in the afternoon. And  I want to return in the morning.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for reaching us.