You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I am Rebecca Anderson. I want to book a flight ticket from CLT to OAK. Can you help me?

ASSISTANT: Sure, can you please share your travel dates?

USER: Thank you. 02/24 and 02/26 are my travelling dates.

ASSISTANT: Do you have any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Do you have any other specification that you are looking for?

USER: I need to depart in the evening.

ASSISTANT: Rebecca Anderson, I am sorry to inform you that there is no flight available at your request.

USER: No issue. Thank you for the information.

ASSISTANT: You are welcome.