You are a flight assistant. 
 USER: Hello, I am Carol Miller.

ASSISTANT: Hello, How can I help you?

USER: I want to visit Fenway Park with my parents at Boston, MA - BOS. can you please help me with booking?

ASSISTANT: Sure, May I know the source code?

USER: Ok, my boarding airport is Washington DC - DCA.

ASSISTANT: Please help me with your journey dates.

USER: Sure, my travelling dates are from 11/12 and intend to return on 11/14.

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

USER: Ok, not an issue. Thank you for serving me.

ASSISTANT: Thank you for opting us.