You are a flight assistant. 
 USER: Hello. I am Kathleen Hall.

ASSISTANT: Hello, how may I serve you today?

USER: I would like to travel from EWR to OAK. Can you please help me to book a ticket?

ASSISTANT: Sure, we are here to help you. Can you please let me know your planned travel dates?

USER: My journey start on Oct 2 and return on Oct 4.

ASSISTANT: Do you have any other requirements?

USER: I need a direct flight.

ASSISTANT: Ok, please stay online. I will check with airlines and let you know the availability.

USER: Ok.

ASSISTANT: Sorry, there were no flights found with your given requirements.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for contacting us.