You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: My name is Samantha Walker. Please book me a plane ticket from LAS to LGA.

ASSISTANT: Ok, may I know your preferable dates to travel?

USER: Sure, my travelling dates are from 06/17 to 06/19. I need 1 connected flight.

ASSISTANT: Sorry for the inconvenience, there is no direct flight available on your requested dates.

USER: It's ok, thank you.

ASSISTANT: Welcome.