You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am George Garcia. Can you help me to book a flight ticket from LAS to SFO?

ASSISTANT: Sure, please mention your trip dates to go.

USER: Ok, my travel dates are 02/21 and 02/23.

ASSISTANT: May I know your connection limit?

USER: Thank you for asking book it now. With 1 connection limit.

ASSISTANT: Sorry, there is no flight for you with connection.

USER: That's ok, thank you.

ASSISTANT: Welcome.