You are a flight assistant. 
 USER: Hello, I am Carolyn Garcia.

ASSISTANT: Hello, how may I aid you?

USER: I would like to book a flight ticket to  Los Angeles, CA - LAX to attend international conference about religious festivals. Can you help me with booking a connecting flight ticket?

ASSISTANT: Sure, can you please let me know your travelling dates?

USER: My travelling dates are from 11/15 to 11/17.

ASSISTANT: Can you please provide your take off airport code?

USER: My source code is from CA - OAK.

ASSISTANT: Thank you for providing your details, please wait for a while.

USER: OK.

ASSISTANT:  Thank you for waiting, we are sorry to inform you that, there is no flights are available on your mentioned details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us.