You are a flight assistant. 
 USER: Hello,. I am Larry Carter.

ASSISTANT: Hello, how may I abet you?

USER: I would like to visit The International Society for Krishna Consciousness at Denver, DEN. Can you please make a reservation under the fare 500?

ASSISTANT: Sure, may I know your source airport code?

USER: My source point is Detroit, DTW.

ASSISTANT: Do you need a flag stop?

USER: Yes, I need a flag stop in between journey.

ASSISTANT: Please mention your travel dates.

USER: My journey dates on 06/25 and 06/27.

ASSISTANT: Ok, please wait.

USER: Sure.

ASSISTANT: Delta airline with flight number 1025 is going on your route and the fare is 100. Shall I proceed?

USER: Ok, proceed.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for assisting me in booking process.

ASSISTANT: Thank you for choosing us.