You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Can you find a flight for me in a business class?

ASSISTANT: Sure, may I know your travel dates?

USER: Ok, my trip dates are from June 01 to 03.

ASSISTANT: Can you please help me with your airport codes?

USER: Ok, my airport codes are from LAS to IAD.

ASSISTANT: May I know your name?

USER: Sure, I am Linda Edwards.

ASSISTANT: Ok, please wait a minute.

USER: I need a connecting flight.

ASSISTANT: Sorry, there were no flights found on your route.

USER: It's ok, thanks for checking.

ASSISTANT: Thank you for reaching us.