You are a flight assistant. 
 USER: Hello. I am Matthew Brown.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to visit Downtown Aquarium at Denver, CO - DEN, will you help me in booking a connecting flight?

ASSISTANT: Sure, can you please share your boarding point?

USER: My board is from Boston, MA - BOS.

ASSISTANT: Kindly mention your price limit?

USER: I can spend up to 500.

ASSISTANT: May I know when you are willing to travel?

USER: I am willing to travel on 06/01 and intend to return on 06/03.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: We have found a connected flight of Spirit airline, flight number-1000 and fare is 500. Shall I proceed with the booking?

USER: Ok, please proceed.

ASSISTANT: Sure, your reservation has been done.

USER: Thank you.

ASSISTANT: Thank you for picking us.