You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: Stephanie Davis here. Can you please help me in booking a flight ticket from LAS to LGA?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your journey dates?

USER: I will start on Feb 20 and need to return on Feb 22.

ASSISTANT: Do you have any preferences?

USER: Yes, I need direct flight.

ASSISTANT: We found a flight with 2 connections, Shall I proceed?

USER: No, I need only direct flight.

ASSISTANT: There are no direct flights available with your data.

USER: No problem, thank you for the information.

ASSISTANT: Thank you.