You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Deborah Harris.

ASSISTANT: How can I assist you?

USER: I would like to travel from Washington to Oakland on a holiday trip. Can you help me in booking a ticket?

ASSISTANT: Ok, please tell me your trip dates?

USER: My planned journey dates are 06/03 and 06/05.

ASSISTANT: Please provide me your travelling airport codes?

USER: Please find a 0 connection flight in the route from IAD to OAK.

ASSISTANT: Sorry, I did not find any direct flight for you to confirm ticket.

USER: Its ok, thank you for the information.

ASSISTANT: Thank you for reaching us.