You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephen Moore.

ASSISTANT: How can I serve you?

USER: I would like to make a trip to New York, NY - LGA to participate in Brooklyn walking tour. Can you help me to book a connecting flight?

ASSISTANT: Ok. May I know your travelling dates?

USER: My trip dates are 07/20 and recur on 07/22.

ASSISTANT: Let me know your origin.

USER: My origin is from Chicago, IL - ORD.

ASSISTANT: Is there any price limit?

USER: The price should be 1000.

ASSISTANT: Thanks for your details, Please hold on.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no flights found on your data.

USER: Ok, thanks for the information.

ASSISTANT: Thanks for choosing us.