You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am planning to visit Central Park at New York, could you please help me with booking a flight ticket from BOS to JFK?

ASSISTANT: May I know your travelling dates?

USER: I would like to depart on June 30th and return on July 2nd.

ASSISTANT: Do you have any connection limit?

USER: I am looking for a connecting flight.

ASSISTANT: Is there any class preference?

USER: I have no other preferences.

ASSISTANT: May I know your good name to proceed further?

USER: I am Donna Martinez.

ASSISTANT: Sorry, there are no flights found with your required dates to travel.

USER: Ok, not an issue. Anyways, thank you for the information.

ASSISTANT: Thank you for opting us.