Hi, my name is Angela Williams.
user
Hello. How may I guide you?
assistant
Actually on my business trip I need to go to Oakland, could you please book a ticket for me?
user
Yes, can I know your name?
assistant
Already I provided my name , but, again I am providing my name , I am Angela Williams.
user
Can I know your airport codes?
assistant
Sure, the airport codes are from LAX to  OAK.
user
Please provide me the travel dates?
assistant
Sure, my preferable dates are 07/24 and return on 07/26.
user
Do you have any additional requirements?
assistant
Yes, the ticket budget may not increase 5000 and connection must be 0.
user
I'm sorry Angela, there are no flights matching your preferences.
assistant
It's OK, thank you for providing me the information.
user
Thank you, have a good day.
assistant