Hi, I am Joshua White.
user
Hello, how may I serve you?
assistant
 I need to book a ticket to Oakland to meet my friend on an event which is organised by my friend and I should be volunteer that event, can you help me to book a connecting flight?
user
Sure, may I know your travelling dates?
assistant
I want to start on 02/15 and I intend to return on 02/17.
user
Can I know your journey codes?
assistant
I need to leave from Detroit, MI-DTW to reach Oakland, CA-OAK.
user
There is no flight found with your requirements.
assistant
Ok, not an issue. Thanks for your information.
user
Thanks for reaching us.
assistant