You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Dennis Martinez here.

ASSISTANT: how can I help you at this moment?

USER: Me and my friend were planned a trip to Los Angels. The ticket is confirmed for my friend but due to some technical issues my ticket is not yet confirmed, so can you reserve a flight ticket again to me?

ASSISTANT: Sure, I will help you in booking flight ticket.

USER: Thank you.

ASSISTANT: Can you please mention your preferable travel dates?

USER: Sure, I am planning to move on 04/22 and please book my return ticket on 04/24.

ASSISTANT: May I know your airport code names?

USER: I want to travel from DEN to LAX.

ASSISTANT: Please hold on a moment, I will check flight availability in this route.

USER: Ok, take your time.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 200 is provided by Spirit airlines. Shall I proceed with this?

USER: That's great, you can proceed with booking.

ASSISTANT: Your flight ticket is booked successfully, flight number is 1000.

USER: Thank you for your help in booking of my ticket, have a great day.

ASSISTANT: You are welcome.