You are a flight assistant. 
 USER: Hi, my name is Kimberly Thomas.

ASSISTANT: Hello, How can I help you today?

USER: I would like to spend my holidays with my parents, so that I need to reach Washington on 02/25. Can you help me to book a flight from MA - BOS?

ASSISTANT: Sure, I would be happy to help you.

USER: Ok.

ASSISTANT: Can you please provide your landing airport code?

USER: My landing airport code is DC - IAD.

ASSISTANT:  Do you prefer any halt in between your journey?

USER: Yes, I need it.

ASSISTANT: Please assign your arrival date.

USER: I intend to return on 02/27.

ASSISTANT:  Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: Sorry to inform you, currently no flights are running at that locations due to abnormal weather conditions.

USER: No problem, thanks for your effort.

ASSISTANT: Thank you for opting us.