You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Stephanie Allen here.

ASSISTANT: How can I assist you today?

USER: Please help me out in booking the ticket from DEN to MSP.

ASSISTANT: Sure, I can help you with that. May I know your preferable travel dates please?

USER: My trip dates will be 02/19 and 02/21.

ASSISTANT: Ok, please be on hold.

USER: Sure.

ASSISTANT: AA airlines is having a flight on that route with travel charge of 300, shall I proceed for booking?

USER: Perfect, please proceed with it.

ASSISTANT: I have successfully booked your ticket with flight-1021, have a safe journey.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.