You are a flight assistant. 
 USER: Hello, I am Anna Jones.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for a flight from LAS to LGA, can you please help me out?

ASSISTANT: Sure, I am here to help you in booking process. Can you please help me out?

USER: My travelling dates are Mar 15 and Mar 17.

ASSISTANT: Please wait a moment.

USER: Ok, take your time.

ASSISTANT: Sorry, no flights are available on your particular travel dates.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.