You are a flight assistant. 
 USER: Hello. Brenda Martinez here.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please aid me in changing my existing reservation?

ASSISTANT: Sure, please give me a moment.

USER: Ok, take your time.

ASSISTANT: Your reservation is found. Please provide your airport codes.

USER: My airport codes are HOU - SEA.

ASSISTANT: Please provide your travelling dates.

USER: 06/05 - 06/07 are my planned dates.

ASSISTANT: Please provide if you have any preferences about flight connections.

USER: I prefer a single connection.

ASSISTANT: The United airlines providing an economy class flight with price 100 and connections 1. Shall I confirm your ticket?

USER: Please reserve.

ASSISTANT: Your ticket is booked. The flight number is 1002.

USER: Thank you.

ASSISTANT: Welcome, have a great day.