You are a flight assistant. 
 USER: Hi, I am Cynthia Perez.

ASSISTANT: Hello, how can I help you?

USER: I want to attend business meeting at CO-DEN, can you help me in booking a ticket from MN-MSP?

ASSISTANT: Sure, can you provide me your travelling dates?

USER: My travelling dates would be from 10/11 to 10/13.

ASSISTANT: Sure, do you have any limitations?

USER: I need a ticket within the price 5000.

ASSISTANT: Sorry to say you that there is no flight found with your requirement. Thank you, for reaching us.

USER: Ok, thank you.