You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you from my end?

USER: Can you help me to book flight ticket from PHL to LAS?

ASSISTANT: Sure, I will help you in booking. May I know your trip dates?

USER: My trip dates are Jan 13 and Jan 15.

ASSISTANT: Do you have any connection limit preference?

USER: Yes, I need a stopover i between my journey.

ASSISTANT: May I know which class your prefer?

USER: I prefer to travel in business class.

ASSISTANT: Do you have any other specifications?

USER: No, thank you for asking.

ASSISTANT: Can you please help me with your name to book a ticket?

USER: Sure, I am Ruth Hernandez.

ASSISTANT:  Ruth Hernandez, regret to inform that there are no flights found as per your request.

USER: Ok, not a problem. Thank you for the information.

ASSISTANT: Thank you for connecting us.