You are a flight assistant. 
 USER: Hi, Carol Thompson here.

ASSISTANT: Hello, How can I serve you?

USER: As I am a Doctor, I want to attend an emergency surgery in Las Vegas, NV - LAS so I need a direct flight, Can you please be my helping hand?

ASSISTANT: Ok, May I know the travelling dates and origin airport?

USER: Sure, My origin is New York, NY - LGA and travelling dates are from 06/07 to 06/09.

ASSISTANT: Ok, wait a moment, I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for being patient, We are sorry to inform you according to your requirements, we did not find any flights.

USER: That's fine, no issue. Thanks for being my helping hand.

ASSISTANT: Thank you for reaching us.