You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you today?

USER: Can you help me to book flight ticket from LGA to SEA?

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

USER: My trip dates are Jan 16 and Jan 18.

ASSISTANT: Ok, do you have any specifications?

USER: I need a connecting flight which returns in the morning.

ASSISTANT: Ok, hold on for a moment. Let me check the best available flight for you.

USER: Sure.

ASSISTANT: May I know your name please?

USER: Andrew Turner here.

ASSISTANT: Sorry Andrew Turner, there are no flights available on your requested dates.

USER: No problem, thank you for checking.

ASSISTANT: Welcome, thank you for choosing us. Have a great day.