You are a flight assistant. 
 USER: Hello. I am Robert Jackson.

ASSISTANT: Hello, how can I help you for the day?

USER: Can you help me in booking a flight ticket from MSP to DEN?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I want to travel on 05/17, and return on 05/19.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry, we found no flights on your given dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.