You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Can you help me to book a flight ticket from IAH to ATL?

ASSISTANT: Sure, please share your journey dates?

USER: I want to travel on 19 Apr and return on 21 Apr.

ASSISTANT: Do you have any specifications?

USER: I prefer to depart in the afternoon with a connecting flight.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Edward Miller.

ASSISTANT: We found a flight in United airlines, flight number is 1006 with single connection and price is 100 economy class, departure flight time at 15:00 hours.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.