You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am Daniel Perez planning to have a round trip from BOS, can you help me to book a flight ticket?

ASSISTANT: Sure, I am here to help you. Can you please let me know your travel dates?

USER: Sure, my travelling dates will be 06/14 and 06/16.

ASSISTANT: Ok, please wait for a while.

USER: Ok, please make sure the connection is 0.

ASSISTANT: Sorry, there is no direct flight available on your preferred dates.

USER: That's ok, thank you.

ASSISTANT: You are welcome and have a nice day.