You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Ronald Young.

ASSISTANT: Young, how may I assist you?

USER: I am planning to book a ticket from IAH to PHL. Can you please help me out to book a ticket for me?

ASSISTANT: Sure, I can help you. Please provide me your travel dates.

USER: I would like to travel on 05/21 and return back on 05/23.

ASSISTANT: Ok, please be online for a while.

USER: Sure.

ASSISTANT: Young, there is a flight available with AA airlines and the ticket price is 100 only. Is that ok for you?

USER: That's fine, please proceed the booking.

ASSISTANT: Young, your ticket is booked and your flight number is 1005.

USER: Thank you for your service.

ASSISTANT: You are welcome.