You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Sandra Mitchell here.

ASSISTANT: How may I aid you today?

USER: I am a singer, I have to participate in a contest at Minneapolis. So please book my ticket from Chicago.

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

USER: My itinerary dates are 08/02 and 08/04.

ASSISTANT: Can you please help me with your respective source and destination airport codes?

USER: My genesis and terminus airport codes are ORD and MSP.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Southwest airlines is having a flight on that route with travel charge of 100, shall I proceed for booking?

USER: Please proceed.

ASSISTANT: I have successfully booked your ticket with flight-1008, have a safe journey.

USER: Thank you.

ASSISTANT: Thank you for choosing us.