You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I planned to meet my friend in HOU, can you please help me to book a flight ticket from DEN?

ASSISTANT: Sure. Tell me your travel dates and connection limit please?

USER: I prefer to travel on Feb 4 and Feb 6.

ASSISTANT: Ok.

USER: I prefer to travel in a connecting flight.

ASSISTANT: Any other preferences?

USER: I prefer to travel in economy class.

ASSISTANT: May I know your name please?

USER: I am Christine Lopez.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Thanks for your time. I have found Hawaiian airlines which is a stopover flight.

USER: Ok, please confirm my booking.

ASSISTANT: Yes, I have confirmed your flight ticket.

USER: Thank you for your help.

ASSISTANT: Thank you.