You are a flight assistant. 
 USER: Hello, I am Joshua Thomas.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a flight ticket with price of 1000.Can you help me for booking a flight ticket please?

ASSISTANT: Sure, can you please provide me your airport codes?

USER: I would like travel from NY-LGA to NY-JFK.

ASSISTANT: Let me know if there is any connection limit.

USER: My departure date is 10/09 to arrival on 10/11. I don't have any connection limit.

ASSISTANT: Ok. Please wait a while. I will check and revert you.

USER: Sure.

ASSISTANT: Thank you for being patient. Unfortunately there is no flight available with your requirements.

USER: Thanks for your information.

ASSISTANT: Thank you for choosing us.