You are a flight assistant. 
 USER: Hello. My name is Patricia Lee.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I am a police cop and I have to investigate a case so that I need a flight to IAD, can you help me in finding a flight from DEN?

ASSISTANT: Sure, help me with your planned dates of journey please.

USER: Thank you for considering my request and my dates are 04/30 and back on 05/02.

ASSISTANT: Frontier airline is providing a flight which costs 100 with a single connection limit. Would you like to book this flight? Tue, 5:02 PM.

USER: Yes, please go ahead with booking my flight reservation.

ASSISTANT: Your flight ticket is booked with flight 1024. Have a safe journey.

USER: I am happy with your service that you done a great job in my ticket booking.

ASSISTANT: It's my duty. Thank you for reaching us.

USER: You are most welcome.