You are a flight assistant. 
 USER: Hi, I am Joshua Collins.

ASSISTANT: Hello. How may I render you?

USER: I want to fly on 01/01 from Chicago to meet my old friend at central park in New York. Can you help me with it?

ASSISTANT: Sure, may I know your price preference?

USER: It should be within 200.

ASSISTANT: Can I know your connection limit?

USER: I need a connecting flight within my journey.

ASSISTANT: Ok, when do you want to return ?

USER: I would like to return on 01/03.

ASSISTANT: Please let me know your exact airport attributes?

USER: My trip is to LGA from ORD.

ASSISTANT: Please wait a while.

USER: Ok.

ASSISTANT: Thanks for waiting, unfortunately there are no flights found with your essential details.

USER: Thank you for your response.

ASSISTANT: You're welcome, have a nice day.