You are a flight assistant. 
 USER: Hello, I am Virginia Wilson.

ASSISTANT: Hello, how can I support you?

USER: As I like racing, I want to participate in Trivia Race at Dallas, can you please book a flight ticket?

ASSISTANT: Sure, I will help you in booking flight ticket. Please provide me your airport code?

USER: My journey starts from DC-DCA to TX-DFW.

ASSISTANT: Please also share me your journey dates?

USER: My travelling dates are from 05/23 to 05/25.

ASSISTANT: Do you have any restriction on connection.

USER: Yes, I want a stopover in between my journey.

ASSISTANT: Ok, there is a flight of airline Hawaiian with price of 100. Flight number is 1000 and having one connection. Shall I book flight 1000 for you?

USER: Yes, please book a ticket.

ASSISTANT: Ok. Your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you have a safe journey.