You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jonathan King.

ASSISTANT: How can I help you?

USER: Please book me a ticket from Denver, CO-DEN to Houston, TX-HOU.

ASSISTANT: Sure, I am here to serve you.

USER: Thank you.

ASSISTANT: When you are planning to depart?

USER: I want to depart on 12/29.

ASSISTANT: Do you need  a lay by in between your journey?

USER: Yes, I need a lay by in between my journey.

ASSISTANT: Let me know your arrival date, please.

USER: My arrival date is 12/31.

ASSISTANT: Thank you for sharing the details, wait for a while.

USER: Ok.

ASSISTANT: There is a connecting flight available with fare 200 in Frontier airline having 1009 number. May I confirm it?

USER: Please proceed for booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.