You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sharon Jones.

ASSISTANT: How can I assist you Sharon Jones?

USER: I want to visit a historical place in Boston. Can you book a ticket from MSP to BOS?

ASSISTANT: Sure, can you please provide your travelling dates to proceed further?

USER: I want to travel on 12/26 and 12/28.

ASSISTANT: Wait a moment please.

USER: Ok, take your time.

ASSISTANT: Sharon Jones, there are no flights available on your requested dates.

USER: That's ok.

ASSISTANT: Thank you for contacting us.

USER: Anyways, thank you for your help.