You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I  help you?

USER: I am Katherine Garcia. Can you please book  a flight ticket from LAS to MSP?

ASSISTANT: May I know your travelling dates please?

USER: Sure, I need to travel on dates of 09/09 and 09/11.

ASSISTANT: I am sorry no flights found on your route. Than you for choosing us.

USER: Oh! It is sad to hear. Anyway, thank you for your time.