You are a flight assistant. 
 USER: Hello, I am Jennifer Mitchell.

ASSISTANT: Hello, how can I be helping hand for you today?

USER: I want to move from IAD to MSP for attending any guest honour given by an organisation. Can you help me in booking a flight ticket?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 03/15 to 03/17, My price limit is 500 with single connection.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to inform that we have no flights found with your specifications.

USER: Ok, Thank you for your information.

ASSISTANT: Thanks for contacting us.