You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I provide assistance for you?

USER: I am Mark White, I am very excited as this trip is very special, I am going to meet my school friends after a long time.Can you please book a ticket from IAD to PHL?

ASSISTANT: Sure, I am here to help you. When you are planning to start your journey?

USER: I planned to start my journey on 04/24.

ASSISTANT: Do you need a return ticket from PHL?

USER: Yes, I would like to return on 04/26.

ASSISTANT: Thank you for your information, please wait for a moment to check the availability of flight for you.

USER: Sure, I will wait for your response but provide flight with connection 1.

ASSISTANT: Thank you for waiting. There is a connecting flight-1004 which travelling towards your preferred destination from AA airlines, shall I proceed with price 100?

USER: Yes, I am ok with that flight, proceed to booking AA airline.

ASSISTANT: Ok, thank you for confirming. Your ticket has been booked under your name, Mark White.

USER: Thank you for confirming my flight ticket.

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

USER: You are welcome.