You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am William Anderson. I want to book a flight ticket from MCO to SEA. Could you help me in booking?

ASSISTANT: Sure, can you please share your journey dates?

USER: My preferable dates are from 01/03 to 01/05.

ASSISTANT: Sorry, no flights found on your given dates.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.