You are a flight assistant. 
 USER: Hi, I am Larry Taylor.

ASSISTANT: Hello, how can I help you today?

USER: I have a plan to visit beer festival at Dallas, please book a flight ticket under price 500.

ASSISTANT: Sure, may I know your airport codes please?

USER: My source code is DEN and Destination code is DFW.

ASSISTANT: When you are willing to travel?

USER: My travelling dates are from 05/10 to 05/12.

ASSISTANT: Do you have any specifications?

USER: I need the ticket with a connection.

ASSISTANT: Ok, please wait for some time.

USER: Ok.

ASSISTANT: Thanks for waiting, we found connecting flight 1003 in Southwest airline with fare of 100.

USER: Please go with booking.

ASSISTANT: Your ticket has been confirmed on your name.

USER: Thank you.

ASSISTANT: Thank you for reaching us.