You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: I would like to meet my client, can you please book my flight ticket from SEA to LGA?

ASSISTANT: Sure, I am here to help you out. Please provide me you trip dates.

USER: I will depart on Sept 10th and return back on Sept 12th.

ASSISTANT: May I know your name to proceed further?

USER: My name is Michelle Hall.

ASSISTANT: Sorry Michelle Hall, there is no flight as per your requirement.

USER: Not an issue. Anyway, thank you.

ASSISTANT: Thank you for reaching us Michelle Hall.