You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me in booking a flight ticket from Boston, BOS to Las Vegas, LAS?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My journey dates are from Mar 15 to Mar 17.

ASSISTANT: May I know your name please to proceed further?

USER: My name is Linda Scott.

ASSISTANT: Do you need a connecting flight?

USER: I need a flag stop in between my journey.

ASSISTANT: May I know your other specifications?

USER: My depart time is morning.

ASSISTANT: Linda Scott, no flights has been found on your planned travel dates.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: Thank you for reaching us.