You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jessica Parker.

ASSISTANT: How may I aid you today?

USER: I need to book a flight ticket from SEA to LAS. Please help me in booking a flight ticket.

ASSISTANT: Sure, let me know your trip dates please?

USER: My trip dates are from 05/31 to 06/02.

ASSISTANT: Do you need any break in between your journey?

USER: I need a direct flight.

ASSISTANT: Do you need any other specifications?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flight services available on your given route.

USER: No problem, thanks for your information.

ASSISTANT: Thanks for reaching us, have a nice day.