Hi.
user
Hello.
assistant
Richard Roberts here.
user
How may I assist you?
assistant
Unfortunately, my trip got postponed. So, I want to change my existing reservation, could you help me?
user
Sure, hold on for a moment.'.
assistant
Sure.
user
Can I know the details of the flight?
assistant
My travelling airport codes are OAK to LGA and the dates are 09/11 and 09/13. Make with fare 200 and limit be 1.
user
There are no flights matching your preferences.
assistant
Ok, no problem. Thank you for your information.
user
Thank you, have a good day.
assistant