Hello.
user
Hello.
assistant
I am Dorothy Rodriguez.
user
How can I help you?
assistant
I need to visit Washington to meet my cousin, can you please help me to book a flight ticket from LAS to IAD?
user
Can I know your travelling dates?
assistant
Sure, my journey dates are Apr 16 and Apr 18.
user
Do you have any preference?
assistant
My class preference is economy.
user
Sorry, no flights found for your travelling dates.
assistant
No problem, thank you for your information.
user
Thank you.
assistant