You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: My name is Melissa Evans, I want to book a flight from DCA to AUS to visit Trade Fair.

ASSISTANT: Sure, tell me your travel dates please?

USER: Can you book a connecting flight for me? I will fly on Dec 17 and return on Dec 19.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your patience. I have found AA airlines which flies with one connection.

USER: Please proceed with booking.

ASSISTANT: Yes, I have confirmed your flight ticket with flight number 1007.

USER: Thank you for your service.

ASSISTANT: Thank you.