You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: Can you please help me to book a ticket from LAX to ORD?

ASSISTANT: Sure, can you please let me know your trip dates?

USER: My trip dates are on Feb 26 and Feb 28.

ASSISTANT: Do you have any connection limit preference?

USER: I need a single connecting flight.

ASSISTANT: Could you help me with your name please?

USER: I am Benjamin Hall.

ASSISTANT: Sorry, there are no flights found for the mentioned dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.