You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I want to participate in science festival at Las Vegas, NV - LAS, can you help me to book a flight?

ASSISTANT: Sure, we are here to make your booking ease. May I know your journey dates?

USER: My source and destination dates are 03/01 and 03/03.

ASSISTANT: Can you share your origin airport code?

USER: My origin is at Phoenix, AZ - PHX. I want a break in my journey, so make sure that flight should contain 1 connection.

ASSISTANT: Ok, may I know your good name for further process?

USER: I am James Moore.

ASSISTANT: No flights found with your dates.

USER: Ok, not a problem.

ASSISTANT: Thank you for choosing us, have a great day.

USER: Thanks for your quick response.