You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I assist you today?

USER: I would like to change my reservation due to postpone of my adventures trip. Please help me with it.

ASSISTANT: sure, I will help you with that. May I know your name, to check the present status of your reservation?

USER: I am Karen Parker.

ASSISTANT: Ok, Please wait for a minute.

USER: Sure.

ASSISTANT: We are happy to inform you that, we found a reservation on your name.

USER: Ok.

ASSISTANT: Please provide your new travelling dates?

USER: My travel dates to modify my reservation are from 12/06 to 12/08.

ASSISTANT: Do you need any connections in between?

USER: Yes, there should be a connection in between my journey.

ASSISTANT: Where do you want to travel?

USER: I want to fly from DFW to CLT.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for approaching us.