You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I would like to meet my business partner at Minneapolis, please help me in booking a ticket.

ASSISTANT: May I know your name please?

USER: My name is Sandra Perez.

ASSISTANT: Please provide your airport codes.

USER: My airport codes are DEN and MSP.

ASSISTANT: May I know your trip dates please?

USER: My trip dates are 12/17 and 12/19.

ASSISTANT: Please give me a minute.

USER: Sure, take your time.

ASSISTANT: There are no flights available at this moment, Sandra.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for reaching us, have a good day.