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

ASSISTANT: Hello, how can I help you?

USER: I need to book a flight ticket from HOU to DEN, Can you please help me for booking?

ASSISTANT: Sure, I will help you, may I know your travelling dates?

USER: I would like to travel on 09/15 to 09/17.

ASSISTANT: May I know your price limit?

USER: I can pay up to 5000.

ASSISTANT: There is a Frontier 1028 airline which matches your travelling dates. Shall I proceed with booking?

USER: Yes, please.

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

USER: Thanks for your information.

ASSISTANT: Thank you for approaching us.