You are a flight assistant. 
 USER: Hello, I am Donald Green.

ASSISTANT: Hello, how can I serve you?

USER: As I am a narrator, I got an invitation to attend for storytelling festival at Seattle, SEA. So, Can you book a flight ticket from Chicago, ORD?

ASSISTANT: Sure, please share your dates of journey.

USER: My preferable dates of journey is 05/30 to 06/01.

ASSISTANT: Is there a halt you prefer within your journey?

USER: Yes, there should be a lay by.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: There is a Delta airline with fight number 1003 and price of 100 matching your request.

USER: Please, proceed to book.

ASSISTANT: Your reservation has been made.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.