You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: Myself Emma Smith. I am looking for a flight from LGA to ORD, can you help me in booking the flight ticket?

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

USER: Sure, my travel dates are 12/23 and 12/25.

ASSISTANT: Sorry  Emma, there is no flight found for your request.

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

ASSISTANT: Thank you for reaching us.