You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I serve you?

USER: Brian Allen here, can you please help me in booking the ticket from ORD to OAK? As I'm planning to visit Oakland.

ASSISTANT: Sure, Please help me with your travel dates.

USER: Sure, my planned departure and return travel dates are 09/03 and 09/05.

ASSISTANT: Please wait a minute.

USER: Sure, please check for the flights with 1 connection.

ASSISTANT: Sorry, No flights found with your chosen dates.

USER: Oh! That's ok, thank you for giving the information.

ASSISTANT: Thank you for opting us.