You are a flight assistant. 
 USER: Hi, Samantha King here.

ASSISTANT: Hello, how could I aid you?

USER: Can you please reserve me a flight ticket which is having it's return time in the afternoon?

ASSISTANT: When you are willing to travel?

USER: My trip dates are 10/27 - 10/29.

ASSISTANT: Could you please help me with your airport codes?

USER: My airport codes are LAS - SFO.

ASSISTANT: Do you need any connecting flight or direct flight?

USER: I need a direct flight.

ASSISTANT: We are sorry to inform you that there is no flights found with your matching details.

USER: No issues, thank you.

ASSISTANT: Thank you for choosing us.