You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephanie Scott.

ASSISTANT: How may I help you?

USER: I am planning to book a ticket from ATL to BOS. Can you please help me out to book a flight for me?

ASSISTANT: I am here to help you, can I have your travel dates?

USER: Thank you, I would like to travel on Dec 27 and return back on Dec 29.

ASSISTANT: May I know your preferences?

USER: I am looking for a connecting flight.

ASSISTANT: Sorry, there is no flight found on your route with your preferences.

USER: That's fine, thank you for your service.

ASSISTANT: Thanks for contacting us.