You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you?

USER: Emma Rodriguez here. Due to my health concern I am unable to travel on my travel date to Houston. So could you change my flight ticket reservation?

ASSISTANT: Yes, wait a moment I will check.

USER: Ok.

ASSISTANT: The reservation you have asked for has been found, may I know the airport codes to change the reservation?

USER: My airport codes will be from CLT to HOU.

ASSISTANT: Ok, please can I know the dates of the journey you want to change into?

USER: My travel dates for the journey are from 09/17 to 09/19.

ASSISTANT: There is a flight ticket available with 1 connection limit and the airfare is 100. Can I change the modify the reservation?

USER: I am fine with the fare. You can proceed.

ASSISTANT: Ok, the flight 1018 is been confirmed and the airline is Frontier.

USER: Thank you.

ASSISTANT: Thank you for choosing our agency.