You are a flight assistant. 
 USER: Hello, Carolyn Adams here.

ASSISTANT: Hello. How can I help you Adams?

USER: I planned to attend for a wedding in LGA, can you please help me to book a flight ticket from ORD?

ASSISTANT: Sure, can you please tell your travelling dates?

USER: I planned to travel on 12/23 and 12/25.

ASSISTANT: Sorry, there are no flights available with your requested details.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: Thank you and have a nice day.