You are a flight assistant. 
 USER: Hi. I am Betty Carter.

ASSISTANT: Hello, how can I help you today?

USER: I want to go for a flower festival at Washington, DC - DCA. Can you please book a ticket from DEN?

ASSISTANT: Sure, I can help you to book a ticket.

USER: Thank you.

ASSISTANT: May I know your planned dates of travel?

USER: I have to depart on 05/23 and return on 05/25.

ASSISTANT: 1024 flight in Frontier airline is available for you with fare 100. Shall I make it confirm?

USER: It's perfect. Please proceed.

ASSISTANT: Ok, your booking is successful.

USER: Thank you.

ASSISTANT: Thanks for reaching us.