You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I am Virginia Scott. I want to book a ticket from AUS to DEN, can you help me?

ASSISTANT: May I know your travel dates?

USER: My travel dates are 04/22 and 04/24.

ASSISTANT: There is a flight with flight number 1004 with price is 100, can I proceed?

USER: You can book it.

ASSISTANT: Your booking is done in Delta airlines.

USER: Thank you for booking.

ASSISTANT: Most welcome.