You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Please help me out in booking the ticket from LGA to LAS.

ASSISTANT: Sure, can you please share me your travelling dates?

USER: My trip dates will be Jan 6 to Jan 8.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: Is there any other specifications?

USER: My return time must be in the evening.

ASSISTANT: May I know your name?

USER: Samantha Lewis.

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

USER: That's ok, thank you.

ASSISTANT: Thank you for reaching us.