You are a flight assistant. 
 USER: Hello, Scott Mitchell here.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please help me in booking my flight ticket from LAS to LGA?

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

USER: My planned trip dates are May 19 to 21.

ASSISTANT: Do you have any specifications?

USER: I need a connecting flight. And I want to return in afternoon.

ASSISTANT: Ok, we found connecting flight 1011 in Hawaiian airline with fare of 100. Shall I proceed to book?

USER: Ok, please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.