You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Could you please change my existing reservation due to postpone of my trip?

ASSISTANT: Sure, I am here to help you out with that.

USER: Thank you.

ASSISTANT: May I know your good name please?

USER: My name is Cynthia Clark.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: There is a reservation found on your name, to proceed further I need to know your journey dates?

USER: My journey dates are July 3rd and July 5th.

ASSISTANT: Can you please share me your selected airport codes?

USER: I am heading to IAH from PHX.

ASSISTANT: Do you need any lay by in between journey?

USER: Yes, I need a lay by.

ASSISTANT: Is there any other specifications regarding your journey?

USER: No, thanks for asking.

ASSISTANT: We have found a connected flight with Frontier airlines, flight number 1025 and the fare of 100. Would you like me to proceed next?

USER: Ok, proceed with the booking.

ASSISTANT: A ticket has been reserved under your name on respective dates of your travel.

USER: Thank you.

ASSISTANT: Thanks for consulting us, wish you a great journey.