Hello.
user
Hello, how may I help you?
assistant
Can you aid me to book my ticket from DCA to SFO?
user
Sure, I am here to help you. May I know your name?
assistant
Edward Baker here.
user
Thank you. Please let me know your travel dates.
assistant
My trip dates are Dec 10 and Dec 12.
user
Noted. Please wait for a while.
assistant
Ok.
user
Sorry, there is no flight available on your preferred travel dates.
assistant
Thank you for the help.
user
You are most welcome.
assistant