Hello, I am Angela Lewis.
user
hello, how may I help you?
assistant
Can you please help me to change my reservation?
user
Sure, please wait for a minute.
assistant
Ok.
user
We found a reservation with your name, may I know your new travelling dates?
assistant
I would like to leave between 12/25 and 12/27.
user
Can I know your journey codes?
assistant
My airport codes are from SFO to OAK.
user
Unfortunately there is no flight found matching your requirements.
assistant
Ok, no problem.
user
Thank you for reaching us.
assistant
Thanks for your service.
user