You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am Mark Taylor. For my college vacation, I want to visit HOU. Can you book my tickets from ATL?

ASSISTANT: Sure, please provide me your destination code.

USER: I would like to travel from 09/23 to 09/25. Make sure my connection should be 1.

ASSISTANT: Ok. The airline Frontier with flight number 1001 is available.

USER: you can book my ticket.

ASSISTANT: Ok. Your reservation is done.

USER: Thank you for your help.

ASSISTANT: Happy journey.