You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Dennis Walker. I want to book a flight ticket to meet my nephew on his birthday. So, can you please check for the flights from DTW to IAH?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My travelling dates are Aug 19 to 21.

ASSISTANT: Ok, do you have any connection limit?

USER: I need 1 connection flight.

ASSISTANT: Ok, may I know your arrival and departure time?

USER: I want to return in afternoon flight.

ASSISTANT: As per your given travelling details, I found a flight for you with single connection and ticket fare is 100 in economy class. Shall I proceed for booking?

USER: Proceed for booking.

ASSISTANT: Your ticket is booked with flight number 1002 and airline is Frontier airline.

USER: Thank you.

ASSISTANT: Welcome, have a safe flight.