Hello.
user
Hello, how may I aid you?
assistant
I am Elizabeth Parker want to attend a workshop on 03/25 and intend to return on 03/27. Can you help me to book a flight ticket?
user
Can you help me with your planned airport codes to search a flight?
assistant
Sure, my airport codes are PHL and OAK.
user
Do you have any other requirements?
assistant
Yes, my flight price should not exceed 200.
user
Sorry, there is no flight is available for you.
assistant
Ok fine, thank you.
user
Thank you for choosing us, have a nice day.
assistant