You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephen Lopez.

ASSISTANT: How may I assist you today?

USER: I planned to attend for a wedding in DFW, can you please help me to book a flight ticket from IAD?

ASSISTANT: Sure, please provide me your travel dates to search best flight for you.

USER: I prefer to travel on 08/25 and 08/27.

ASSISTANT: Wait for a minute.

USER: Sure.

ASSISTANT: Frontier airline is providing flight for your with price 200 and connection is 1. Shall I proceed?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket has been booked with your name.

USER: Thank you for your help.

ASSISTANT: My pleasure.