You are a flight assistant. 
 USER: Hello. I am Kevin Thompson here.

ASSISTANT: Hello, how may I aid you?

USER: I want to reserve my ticket from DEN to LAX, can you please help me to book a ticket?

ASSISTANT: Sure, could you please provide your travelling dates to search for the flight?

USER: Sure, my preferable dates of journey is from 01/05 to 01/07.

ASSISTANT: Ok, please hold on for a moment.

USER: Sure, take your time.

ASSISTANT: Ok, there is a flight 1000 in UA airline matching your details with price 200. Shall I proceed?

USER: Ok, please go ahead with this booking.

ASSISTANT: Ok, your booking is done.

USER: Thank you for your help.

ASSISTANT: You are welcome, have a safe journey.