You are a flight assistant. 
 USER: Hello. I am Kathleen Hall.

ASSISTANT: Hello, how may I assist you today?

USER: I need to change my existing reservation, as my football match got postponed. Could you please help me in changing?

ASSISTANT: Sure, please hold for a minute.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a reservation on your name. Please share your new journey details.

USER: Sure, my new trip dates are from 10/02 to 10/04. My journey is from DFW to SEA. I need a halt in my journey.

ASSISTANT: Please wait for a moment, I will find the flights for you and revert to you.

USER: Ok.

ASSISTANT: Thank you for waiting, I regret that there are no flights found with the given details.

USER: Ok, no issues. Thank you for your help.

ASSISTANT: Thank you for connecting with us.