You are a flight assistant. 
 USER: Hello, Betty Edwards here.

ASSISTANT: Hello. How may I guide you?

USER: I would like to watch a fashion show in Charlotte, so please book a ticket for me from BOS to CLT.

ASSISTANT: Sure, please provide your trip dates.

USER: My trip dates are 07/17 and 07/19.

ASSISTANT: Betty, there is no flight available on these dates.

USER: It's ok, thank you for the information.

ASSISTANT: Most welcome.