You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am looking for flight to Las Vegas to visit my home. Can you find me a flight from LAX?

ASSISTANT: Sure, I am here to help you in booking. Can you please share your travel dates?

USER: I will fly on Sept 15 and return on Sept 17.

ASSISTANT: Ok, may I know your destination code?

USER: My destination point is LAS.

ASSISTANT: Let me know your connection limit.

USER: I prefer a connecting flight.

ASSISTANT: Do you have any specification?

USER: I want my depart flight in evening.

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

USER: Ok, thank you for the information.

ASSISTANT: May I know your name?

USER: My name is Carolyn Thomas.

ASSISTANT: Thank you for reaching us, have a nice day.