You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I support you today?

USER: I'm Anthony Smith. Please book a ticket from Boston, MA-BOS to Minneapolis & St. Paul, MN-MSP.

ASSISTANT: Ok, I am glad to help you. Can you please provide me your travelling dates?

USER: I will depart by 01/01 and will return on 01/03.

ASSISTANT: Do you have any price limit?

USER: Yes, ticket fare limit is 500.

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

USER: Flight connections limit is 1.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Sorry, there is no flight found on your requirement.

USER: Thanks for your help.