You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Alexander White.

ASSISTANT: Ok.

USER: I want to book a flight ticket to visit art gallery at TX-AUS from CO-DEN. Can you help me?

ASSISTANT: Sure, I will help you, may I know your travelling dates?

USER: 08/08 and 08/10  are my travelling dates.

ASSISTANT: May I know your price limit?

USER: 500 is my fare.

ASSISTANT: There is a Southwest 1019 with fare of 100 which matches your travelling dates. Shall I proceed with booking?

USER: You can reserve it for me.

ASSISTANT: Your booking has been confirmed on name of Alexander White.

USER: Thank you for your service.

ASSISTANT: Thank you for approaching us.