You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have planned to visit new England aquarium at Boston, MA - BOS. Can you please book a ticket from DTW?

ASSISTANT: Sure. May I know your journey dates?

USER: I need to depart on 04/30 and return on 05/02. I need a lay by in between my journey.

ASSISTANT: Do you have any specifications?

USER: Price of ticket should be under 500.

ASSISTANT: May I know your good name for further process?

USER: I am Ronald Rodriguez.

ASSISTANT: No flights found on your journey dates.

USER: Ok, it's not an issue.

ASSISTANT: Thank you for choosing us, have a nice day.

USER: Thanks for your response.