You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, Good Evening.

USER: My name is Stephanie Carter. Good Evening.

ASSISTANT: How can I help you for today?

USER: I want to visit my brother for his birthday and come back, could you help me out?

ASSISTANT: Sure, I will help you in booking your ticket. Could you please tell me on which dates you are interested to travel?

USER: As his birthday is on 09/10, I would prefer to travel from 09/09 to 09/11.

ASSISTANT: Ok Stephanie, please provide the origin and destination airport codes?

USER: As it is a round trip, the source and destination is same which is Detroit DTW.

ASSISTANT: Ok, please give me a second so that I can search for a flight which matches with your requirements.

USER: Sure, take your time.

ASSISTANT: Yes, there is a flight available with 1 connection and it will cost you 100, may I confirm your ticket with the Delta airlines?

USER: Please proceed with the booking.

ASSISTANT: Ok, your ticket is successfully booked with the flight 1021.

USER: Thank you for helping me out.

ASSISTANT: Thank you, have a safe flight.