You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: I am looking for a flight from HOU to DEN, can you help me out?

ASSISTANT: Sure, we are here to help you. Can you please share your travelling dates?

USER: Thank you and my trip dates are from Dec 28th till Dec 30th.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Sure, do you have class preference?

USER: No, I am ok with any class.

ASSISTANT: Do you have any other requirements?

USER: No, I don't have any requirement.

ASSISTANT: There is a flight with single connection in Frontier airlines, can I proceed for booking in economy class airlines?

USER: Please proceed with it.

ASSISTANT: On which name, can I  proceed for booking?

USER: Myself Joshua Carter.

ASSISTANT: Your booking is done in 1023 flight, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.