Hello.
user
Hello, how can I help you today?
assistant
Myself Raymond Allen, want to book a ticket from IAD to SFO. Will you please help me?
user
Can I know your dates of journey?
assistant
My journey dates are from 11/25 to 11/27.
user
Sorry Raymond, I did not find any flight basing on your details.
assistant
It's ok, thank you for your help.
user
Thank you for reaching us.
assistant