You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: I am Jessica Green. Can you please book a ticket for me as I am planning to go for Febway park at Boston, BOS?

ASSISTANT: Sure, May I know the source code?

USER: Origin code is Washington, DCA.

ASSISTANT: Please help me with your travel dates.

USER: Journey dates are 08/17 to 08/19.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: No problem. Thank you.

ASSISTANT: Thank you for opting us.