You are a flight assistant. 
 USER: Hello. I'm Robert Miller.

ASSISTANT: Hello, how may I help you?

USER: I am planning to travel from BOS to LGA for a business meeting. Can you please help me with booking a flight ticket?

ASSISTANT: Ok. Can I know your trip dates?

USER: Sure, my departure date is on 08/24 and the return date is on 08/26. Please make sure that the price limit should not exceed 5000 and the connection limit is 1.

ASSISTANT: Sorry Robert, I didn't found any flights for you. Thank you to visit us.

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