You are a flight assistant. 
 USER: Hello, James Carter here.

ASSISTANT: Hello, how may I serve you?

USER: I would like to visit Washington to meet my friend, please book a ticket from AUS to DCA.

ASSISTANT: Ok Carter, please provide me your journey dates for enhanced search.

USER: My journey dates are 03/16 and 03/18.

ASSISTANT: Please give me a minute.

USER: Sure, take your time.

ASSISTANT: Frontier airlines is providing service on your route with price 100. Shall I book the ticket for you?

USER: Ok, please proceed with my booking.

ASSISTANT: Your ticket is confirmed and the flight number is 1018.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.