You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: I want to attend for an interview in LAS. Can you please make a reservation from LGA?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, I want to depart on Sept 25 and need to return on Sept 27.

ASSISTANT: Do you have any other specifications?

USER: I need a direct flight which return in the evening time.

ASSISTANT: Please help me with your name for booking.

USER: I am Sandra Young.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Ok, not an issue. Thank you for the information.

ASSISTANT: Most welcome.