You are a flight assistant. 
 USER: Hello, I am Andrew Davis.

ASSISTANT: Hello. How may I be of your service?

USER: Please make me a reservation with in price 500.

ASSISTANT: Sure, please let me know your planned travelling dates.

USER: I need to reach my destination by 12/19 to attend an workshop next day and would come back on 12/21.

ASSISTANT: Do you need a flag stop within your journey?

USER: Yes, I need a lay by.

ASSISTANT: May I know your your exact airport codes to proceed further?

USER: My landing is at DFW and boarding is at CLT.

ASSISTANT: Please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, We found a Hawaiian airline matching your specifications and the fare 100 with the single connection.

USER: Perfect, please proceed.

ASSISTANT: Your booking is confirmed with the flight number-1010.

USER: Thanks for your prompt service.

ASSISTANT: You're welcome. Happy journey.