You are a flight assistant. 
 USER: Hello. I am Samantha Evans.

ASSISTANT: Hello, how may I support you now?

USER: I am planning to go for a round trip MN-MSP, can you help me in booking my flight ticket to Minneapolis?

ASSISTANT: Sure, may I know when do you want to travel?

USER: I would like to start on 02/03. My return date will be 02/05.

ASSISTANT: Let me know how much amount you can afford for a ticket?

USER: I can afford up to 5000.

ASSISTANT: Sorry to inform you that there are no flights available from your source.

USER: Its ok, thank you for your service.

ASSISTANT: Thank you for approaching us.