Hello.
user
Hello, How can I serve you?
assistant
I am William Brown. I am planning to go for cable car museum at San Francisco,  SFO. Can you please book a ticket for me?
user
Sure, May I know the source code?
assistant
Source code is New York, EWR.
user
Please help me with your travel dates.
assistant
Journey dates are 10/15 to 10/17.
user
Please wait a minute.
assistant
Sure.
user
Sorry, No flights found with your preferable dates.
assistant
No problem. Thank you.
user
Thank you for opting us.
assistant