You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Deborah Collins here. Please book my ticket from OAK to MSP.

ASSISTANT: Ok, can I know your dates of travel?

USER: My trip dates are 10/17 and 10/19.

ASSISTANT: Give me a moment.

USER: Sure.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: It's ok, thank you.

ASSISTANT: Thank you for consulting us.