You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am planning to visit Minneapolis, can you please book me a ticket from PHL to MSP?

ASSISTANT: I would like to help you with that. Can you please share your preferable dates?

USER: My preferable journey dates are from 03/31 to 04/02.

ASSISTANT: May I know your name please?

USER: My name is Nancy Lopez.

ASSISTANT: I am sorry to say that there is no flight found.

USER: Ok, not an issue. I will find any alternate for this trip.

ASSISTANT: Thank you.

USER: Thank you for providing information.