You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am Betty Robinson. I am planning to travel from DTW to LAS, can you help in booking?

ASSISTANT: Sure Betty, I am happy to help you with that. Can I have your travel dates please?

USER: My travelling dates are 07/06 to 07/08.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry Betty Robinson, no flight is available to you on your dates due to some weather conditions.

USER: That's ok, thank you for your help.

ASSISTANT: Thank you for choosing us, have a good day.