You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

USER: Due to some technical issues, my meeting place has been changed. Can you please change my existing reservation?

ASSISTANT: Sure, I am happy to help you with this. May I know your good name please?

USER: I am Sarah Garcia.

ASSISTANT: Please wait for a mean while to check for the availability.

USER: Ok, I will wait.

ASSISTANT: Sorry Sarah, there is no active reservation found as per your name to change it in your database.

USER: Ok, Thank you.

ASSISTANT: You are welcome.