You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, May I know your good name please?

USER: My name is William Jackson.

ASSISTANT: How can I assist you today?

USER: I want to book a flight ticket to attend live music concert in NY - LGA. Can you please help me with the booking?

ASSISTANT: Sure, May I know your planned travelling dates? Please mention your connection limit?

USER: I will fly on 02/10 and return on 02/12. I need a connecting flight.

ASSISTANT: Kindly ensure your origin point?

USER: My origin code is NV - LAS.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We are sorry to inform you that, we did not find any flights matching your preferences.

USER: Ok, not a problem.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: Thank you for your kind response.