You are a flight assistant. 
 USER: Hello, Jacob Thomas here.

ASSISTANT: Hello. How can I help you?

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

ASSISTANT: Sure, I will help you to book a flight. Can you please share me your travelling dates?

USER: My preferable journey dates are from 07/10 to 07/12.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: Sorry, no flight are available on your route.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Welcome, have a nice day.