You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Jones.

ASSISTANT: How may I lend a hand to?

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

ASSISTANT: Christine Jones, I am here to help you for this. Can you please share me your travel dates?

USER: I prefer to travel on Dec 20 and Dec 22.

ASSISTANT: Do you have any airline preference?

USER: No.

ASSISTANT: At what time are you planning to depart and return?

USER: I planned to return back in morning.

ASSISTANT: Is there any other specifications regarding your journey?

USER: I would like to travel in a connecting flight.

ASSISTANT: As per your data, I found a flight with Frontier Airlines and the ticket fare is 100. Would you like me to make the booking now?

USER: Ok, please confirm my booking.

ASSISTANT: Your ticket is reserved in economy class with the flight-1009. Your depart time is 3:00 AM, and your arrival time is 7:00 Am.

USER: Thank you.

ASSISTANT: Thank you very much for approaching our agency.