You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Sarah Adams want to visit New York to meet my  cousins.

ASSISTANT: Sure, please provide me your travelling dates?

USER:  I will depart on 11/16 and return 11/18.

ASSISTANT: Do you have any connection limit?

USER: I need a single connection.

ASSISTANT: May I know your airport codes?

USER: I will depart from HOU to LGA.

ASSISTANT: Ok, thanks for providing information. Unfortunately there are no connecting flights found for you.

USER:  Ok, thank you for your information.

ASSISTANT: Thanks for choosing us, have a great day.