You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I help you?

USER: I want to travel BOS to meet my friend, can you please help me to book flight ticket from JFK?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are Oct 28 and Oct 30.

ASSISTANT: Do you have any connection limit?

USER: I prefer a connecting flight to travel.

ASSISTANT: Any other preferences?

USER: I do not have any other preferences.

ASSISTANT: May I know your name?

USER: Sure, I am Kimberly Hill.

ASSISTANT: Sorry, there are no flights found with your data.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you.