You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Kenneth Edwards here. I want to change my current reservation, can you help me?

ASSISTANT: How may I help you?

USER: I want to change my reservation today.

ASSISTANT: I have found your reservation can you please provide me your travelling dates?

USER: I will be travelling on 05/19 to 05/21.

ASSISTANT: Ok, please send me your travelling codes?

USER: My desired locations are MSP - DEN.

ASSISTANT: Here is a flight with price 300 and connection limit is 1.

USER: Ok, please book it.

ASSISTANT: Ok, your ticket has been confirmed with 1025 flight number.,.

USER: Thank you for helping me.

ASSISTANT: Thank you for reaching us.