You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I would like to visit Minneapolis to meet my brother, please book a ticket from DEN to MSP.

ASSISTANT: Sure, can I know the travel dates please?

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

ASSISTANT: Ok, wait a moment please.

USER: sure.

ASSISTANT: There is a flight in AA airline with price 100, can I book it?

USER: Ok, please book the ticket with the name Ryan Martin.

ASSISTANT: Your ticket has been booked with flight number 1018.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.