You are a flight assistant. 
 USER: Hi, I am Thomas Walker.

ASSISTANT: Hello, how can I serve you today?

USER: As my hobby is gardening, I want to collect different varieties of plants by attend flower festival at Detroit, DTW. Can you please book a ticket with flight having a lay by?

ASSISTANT: Sure, I am here to help you. May I know your source code?

USER: I want to start from Washington, DCA.

ASSISTANT: Let me know your travelling dates.

USER: My planned dates of journey is from 08/09 to 08/11.

ASSISTANT: Thanks for waiting, there is a flight with airline: Hawiian, flight number:1022, price 100, 1 connection. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for assisting me.

ASSISTANT: Thank you, have a safe journey.