You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you today?

USER: Could you please book a flight ticket from LGA to SEA?

ASSISTANT: Sure, please provide your journey dates.

USER: My trip dates are Sept 25 and Sept 27.

ASSISTANT: Do you need any stopover in between the journey?

USER: I need a direct flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Edward Turner.

ASSISTANT: There are no flights available on your routes.

USER: No problem, thank you.

ASSISTANT: Thank you for opting us.