You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel from DFW to BOS, can you please help me in flight booking?

ASSISTANT: Sure, I'm happy to help you. Can you please provide your planned departure and return travel dates?

USER: I want to fly on Mar 01, return on Mar 03.

ASSISTANT: Do you prefer stopover in between your journey?

USER: I need a single connecting flight.

ASSISTANT: Please let me know if you have any other specifications.

USER: I do not have any other specifications.

ASSISTANT: May I know your good name please?

USER: My name is Emily Martin.

ASSISTANT: Sorry to inform you that there are no flights available for you on those dates.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us, have a nice day.