You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Elizabeth Brown. I have a plan to meet my friend in Minneapolis, can you help me for booking a flight ticket from ORD to MSP?

ASSISTANT: Sure, I am glad to help you in booking. Can I have your travel dates please?

USER: My travelling dates are 12/12 and 12/14.

ASSISTANT: Please wait a moment.

USER: Sure, I will wait.

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

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, thank you for reaching us.

USER: Welcome.