You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I am looking for a flight from LAS to ATL, can you help me?

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

USER: My travelling dates are 30 Aug and 01 Sep.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight.

ASSISTANT: May I know your class preference?

USER: No.

ASSISTANT: Do you have any airlines preference?

USER: No.

ASSISTANT: May I know your departure and arrival time?

USER: I am ok with any timing.

ASSISTANT: Ok, may I know your name to proceed with booking?

USER: I am Paul Phillips.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: Sorry, there are no flights in this route as per your travelling details.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for choosing us.