Hi.
user
Hello, how may I assist you?
assistant
I need to change my reservation due to urgent meeting, can you help me?
user
May I know your name please?
assistant
I am Laura Jones.
user
Please allow me to check with availability.
assistant
Ok.
user
I am very sorry to inform you, there are no flights available for your journey.
assistant
That's ok. Thank you for your help.
user
Most welcome.
assistant