You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Sandra Green.

ASSISTANT: How can I aid you?

USER: I am planning to travel from DTW to DTW for a round trip, can you help me out?

ASSISTANT: Sure, may I know your journey dates please?

USER: My journey dates are 12/07 and 12/09.

ASSISTANT: Wait a moment please.

USER: Ok.

ASSISTANT: Frontier airlines is available in your route with the ticket fare of 100, shall I proceed with the booking?

USER: Yes, proceed with booking.

ASSISTANT: Your ticket is booked with the flight-1005.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.