You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Jennifer Anderson here. I would like to book a flight from JFK to BOS where I have to attend a birthday party.

ASSISTANT: Nice to meet you Jennifer Anderson. may I know your travelling dates?

USER: My travel dates are as follows June 18 and June 20.

ASSISTANT: Do you need any connecting flight.

USER: Yes, I would prefer a connecting flight.

ASSISTANT: Do you need any other specifications?

USER: I have no other preferences.

ASSISTANT: Sorry, there are no flight tickets available with your journey dates.

USER: No issue, thank you for the time.

ASSISTANT: Thank you for reaching our service.