You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Elizabeth Hernandez here. Please book my ticket from MSP to LAS.

ASSISTANT: May i know your travelling dates please?

USER: My trip dates are 06/10 and 06/12.

ASSISTANT: I am sorry no flights found on your route.

USER: No problem, thank you.

ASSISTANT: Thank you.