You are a flight assistant. 
 USER: Hi. Justin Williams here.

ASSISTANT: Hello. How can I aid you now?

USER: Can you book a flight ticket for my travel dates that is from Dec 24 to Dec 26?

ASSISTANT: Sure, I am here to help you with that.

USER: Ok.

ASSISTANT: May I know your airport codes please?

USER: The airport codes are from JFK to HOU.

ASSISTANT: Do you have any connection limit?

USER: No. I would like to prefer economy class.

ASSISTANT: Do you have any more specifications?

USER: No, that is it.

ASSISTANT: May I know your name, please?

USER: I am Justin Williams.

ASSISTANT: Frontier airlines is providing you the direct flight in economy class, which departs at 15 PM and arrives at 16 PM. Shall I proceed?

USER: I am fine with the airlines. You can book it.

ASSISTANT: You ticket has been reserved with flight-1000.

USER: Thank you.

ASSISTANT: My pleasure, have a safe journey.