You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicholas Hernandez.

ASSISTANT: Nicholas Hernandez, how can I aid you today?

USER: I want to book a ticket from MSP to LAS to attend seminar, can you help me in booking?

ASSISTANT: Sure, I am here to help you. May I know your travel dates please?

USER: I am departing on June 29 and return on July 01.

ASSISTANT: Ok, do you have any specifications?

USER: I want to return on afternoon time.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: I need a flight with connection limit 1.

ASSISTANT: Sorry Nicholas Hernandez, there are no flights available on your requested dates.

USER: That's ok, thank you for your information.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.