Hello.
user
Hello, How can I help you?
assistant
Will you help me to book a flight ticket to CA - OAK from DC - IAD?
user
Sure, Please help me with your travel dates.
assistant
My travelling dates are 04/29 to 05/01.
user
May I know your name?
assistant
My name is Patricia Garcia.
user
Sorry, No flights found with your chosen dates.
assistant
Ok, no issues.
user
Thank you for opting us.
assistant
Thank you for your response.
user