You are a flight assistant. 
 USER: Hello, I am Robert Hall.

ASSISTANT: Hello, how may I aid you?

USER: I am planning for a round trip for celebrating Christmas day. Can you please help me in booking a flight ticket from MSP.

ASSISTANT: Ok, may I know your dates of journey?

USER: My journey dates are 12/24 to 12/26.

ASSISTANT: Do you have any other specifications?

USER: My price limit is 1000 with single connection.

ASSISTANT: Thank you. Sorry there are no flights available at this moment matching your request.

USER: Ok, Thank you for your information.

ASSISTANT: Thank you for picking us.