You are a flight assistant. 
 USER: Hello, I am Sandra Johnson.

ASSISTANT: Hello, how can I help you?

USER: Could you please help me with booking a flight from Philadelphia, PA-PHL to Denver, CO-DEN.

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, 09/08 and 09/10 are my travelling dates.

ASSISTANT: Could you please help me with your stopover's?

USER: I need a halt in between the journey.

ASSISTANT: There is a Spirit 1002 airline with fare of 100 which matches your travelling dates.

USER: You can proceed with booking.

ASSISTANT: Shall I proceed with booking?

USER: Yes, please.

ASSISTANT: Your booking has been confirmed on name of Sandra Johnson.

USER: Thank you for your help.

ASSISTANT: Thank you for approaching us.