You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Carter.

ASSISTANT: How may I aid you at this moment?

USER: I planned to meet my cousin in ATL, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure Melissa Carter, I am happy to help you with that. Can I have your travel dates please to get exact flight for you?

USER: I would like to travel on May 12 and May 14.

ASSISTANT: Do you want any halt in between your journey?

USER: I prefer to travel in 1 connecting flight.

ASSISTANT: Ok, please let me know the airlines preference too.

USER: I am comfortable with any airline.

ASSISTANT: As per your requirements, there is a flight in Delta airlines which is having connection 1 and the ticket fare is 200. Are you fine with this flight?

USER: Ok, please confirm my booking.

ASSISTANT: Ok Melissa Carter, your ticket booking has done and the flight number is 1009.

USER: Thank you for your assistance.

ASSISTANT: Thank you for choosing us, have  a great journey.