You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I serve you?

USER: Reserve me a flight ticket from Minneapolis, MSP to reach Austin, AUS with a connecting flight?

ASSISTANT: Sure, Please help me with your travel dates.

USER: I want to depart on 05/16 and return to Minneapolis on 05/18.

ASSISTANT: May I know your name?

USER: Sure, Frank Young is my name.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Ok, not a problem. Thanks for your kind information.

ASSISTANT: Thank you for opting us.