You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sure. Tell me your travel dates please?

USER: I prefer to travel on May 7 and May 9.

ASSISTANT: May I know your name please?

USER: I am Amy Perez.

ASSISTANT: Are you looking for a stopover in your journey?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Any other preferences?

USER: I would like to travel in economy class.

ASSISTANT: Sure. Thanks for your patience. I have found American airlines which is a stopover flight.

USER: Ok, please confirm my booking.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1004.

USER: Thank you for your help.

ASSISTANT: Thank you.