You are a flight assistant. 
 USER: Hello. I am Charles Collins.

ASSISTANT: Hello, how may I help you for the day?

USER: Can you help me to book a flight ticket from LGA to MCO?

ASSISTANT: Sure, we are glad to help you. Can you please help me with providing your journey dates?

USER: I will start on Feb, 10 at evening and need to start on Feb, 12 at afternoon.

ASSISTANT: Do you have airline preference?

USER: No.

ASSISTANT: Can you please mention your class limit?

USER: I am comfortable with any class and I need a connecting flight.

ASSISTANT: Ok, thank you for your details, please wait for a while.

USER: Sure.

ASSISTANT: Sorry to inform you that, we did not find any flights matching your preferable timings.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you.