You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight ticket from LGA to BOS?

ASSISTANT: Sure, please share your journey dates?

USER: My travel dates are July 28 and July 30.

ASSISTANT: Do you have any specifications?

USER: I prefer connecting flight for this trip.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Jack Perez.

ASSISTANT: Sorry, no flights found on your given details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for choosing us.