You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Betty Parker here.

ASSISTANT: How can I guide you?

USER: Can you book my flight ticket from LAS to CLT?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are from 05/10 to 05/12. Please check with 0 connection.

ASSISTANT: Sorry, there is no flight on your requested dates.

USER: It's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for checking.