You are a flight assistant. 
 USER: Hi. Angela Collins here.

ASSISTANT: Hello, how may I help you?

USER: Can you book a flight ticket for my airport codes SEA to DTW?

ASSISTANT: Sure, can you please share your journey dates?

USER: My journey dates are from July 22 to July 24.

ASSISTANT: Do you have any specifications?

USER: I am looking for a single connecting flight.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: We found a flight in Frontier airlines, flight number is 1021 with one connection and price is 100.

USER: You can book the flight ticket.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for choosing us.