You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Can I help you?

USER: I'm planning to travel with my family members, can you please help me to book a ticket from MA-BOS on 06/14?

ASSISTANT: Of course, I will help you. Can you provide me your destination airport code and the returning date please?

USER: Sure, my destination airport code is DC-DCA with the return date 06/16.

ASSISTANT: Can I have your name for further process?

USER: Sure, my name is Daniel Perez here.

ASSISTANT: Ok Perez, I found a flight matching to your request, the airlines UA with connection limit 0.

USER: Please don't book it.

ASSISTANT: Ok. Keep consulting our services. Have a nice day.

USER: Sure, thank you.