You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I want to go for Outdoor trivia race at Dallas & Fort Worth, DFW. Can you help me out?

ASSISTANT: Sure. May I know your good name?

USER: Sure, I am Timothy Wilson.

ASSISTANT: Let me know your trip dates.

USER: My journey dates are from 08/18 to 08/20.

ASSISTANT: Do you have any connection limit?

USER: I need a direct flight in my journey.

ASSISTANT: To proceed booking I need your source code.

USER: My source airport code is Detroit, MI - DTW.

ASSISTANT: Please, wait.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no direct flight found on your given specified dates.

USER: Not an issue. Thank you.

ASSISTANT: Thank you.