You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kevin Turner here.

ASSISTANT: How may I aid you?

USER: Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: I found your reservation, may I know your trip dates?

USER: My travelling dates are 01/08 and 01/10.

ASSISTANT: Can you please provide me your airport codes?

USER: My airport codes are JFK and DEN.

ASSISTANT: Do you have any specifications?

USER: I want to depart on evening. I would prefer normal cost airline.

ASSISTANT: Here, there is a flight with 1 connection in Delta airlines and price is 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, your ticket is booked with the flight 1026.

USER: Thanks for helping me.

ASSISTANT: Thank you for choosing us.