You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: William King here.

ASSISTANT: How can I help you?

USER: Find a flight ticket for me that is from MSP to EWR.

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

USER: My travel dates are 01/27 to 01/29.

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: Sorry, there is no flights are available on your requested dates.

USER: Ok, not a problem. Thank you.

ASSISTANT: Welcome.