You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am John Green. I am planning to travel on these days that is on 11/09 and return on 11/11. Can you find a flight ticket for me?

ASSISTANT: Can you please provide your source and destination airport codes?

USER: Sure, my exact airport codes are from LGA to ORD.

ASSISTANT: Do you have any other requirements that you are looking for?

USER: Yes, make sure that the connection limit 0.

ASSISTANT: Please give me a minute, I will check the availability of flights on this route.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is a connecting flight available on your requested dates.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for contacting us, have a nice day.