You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I am planning to book a flight ticket to LAS from SEA, can you please help me out?

ASSISTANT: Please provide your trip dates.

USER: Sure, my travelling dates are May 11 and May 13.

ASSISTANT: Do you need any connection limit?

USER: Yes, I am looking for a flight with 1 connection.

ASSISTANT: Do you have any other requirements?

USER: Yes, I prefer normal cost airlines.

ASSISTANT: May I know your name?

USER: Sure, my name is Katherine Gonzalez.

ASSISTANT: There are no flights available on your routes.

USER: It's ok, thank you for the information.

ASSISTANT: Thank you for choosing us.