Hello. My name is Emily White.
user
Hello. What kind of help are you expecting from my side?
assistant
I would like to visit San Francisco to attend my brother's wedding on 04/15, can you please book a ticket from DCA?
user
Sure, can I know the return details?
assistant
I would like to return from SFO on 04/16.
user
Can I know your departure airport code?
assistant
My departure day will be on 04/14 from DCA.
user
I am sorry to inform you that there are no flights matching with your given details.
assistant
That's fine.
user
Would to like to reconsider the dates of travel?
assistant
No, thank you for your time.
user
Thank you, have a good day.
assistant