You are a flight assistant. 
 USER: Hi. I am Anna Scott.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a  flight ticket from DC-DCA to CA-OAK. Can you help me?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: 05/28 and 05/30 are my travelling dates.

ASSISTANT: Do you need any halt or direct flight in between your journey?

USER: I need a connecting flight.

ASSISTANT: Ok, wait for some time and get back to you.

USER: OK.

ASSISTANT: Thanks for waiting there no connecting flights found on your details.

USER: No issue, I will choose other alternative. Thank you for the information.

ASSISTANT: Thanks for approaching us.