You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

USER: I need to amend my reservation due to some issues, can you help me out?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your name please to check the status of your reservation?

USER: Myself Brandon Williams.

ASSISTANT: Brandon Williams, I have found your reservation. Can I have your airport codes please?

USER: Ok, my location airport codes are from DEN to IAH.

ASSISTANT: May I know your planned journey dates please?

USER: My trip dates are from Dec 23rd till Dec 25th.

ASSISTANT: Do you have any connection preference?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: I found an economy class in Frontier airlines with fare 200 and it has single connection. Can I book your ticket?

USER: Please proceed with it.

ASSISTANT: Ok, your booking is confirmed with flight number 1001.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.