You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you at this minute?

USER: I want to travel form SEA to EWR, can you please help me to book the flight ticket?

ASSISTANT: Sure, I am happy to help you with that. Can I know your travelling dates?

USER: I want to travel in Aug from 25th to 27th.

ASSISTANT: Ok, may I know your name?

USER: Andrew Edwards here.

ASSISTANT: Ok, may I know your connection limit?

USER: I am comfortable with any flight.

ASSISTANT: Ok, do you have any other requirements?

USER: I prefer Business class.

ASSISTANT: The Southwest airlines are providing a flight having a connection limit 1. Can I proceed with the ticket booking? Ok, wait for a minute.

USER: Yes, please proceed.

ASSISTANT: Sorry to say that, there are no flight's available based on your class limit.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.