You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: Myself Lisa Collins and I want to participate in a conference at MSP. Can you help me in this ticket booking?

ASSISTANT: Sure, please share your travelling dates?

USER: Travelling dates are from 06/14 to 06/16.

ASSISTANT: Do you have any other specifications?

USER: I need a connecting flight. With price limit of 500.

ASSISTANT: May I know your source point?

USER: Source point is Washington, DCA.

ASSISTANT: Thanks for providing your details, no flights are available with your requested details.

USER: Ok. Thank you for your information.

ASSISTANT: Thanks for approaching us.