You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello.

USER: I am Brenda Parker.

ASSISTANT: How can I help you today?

USER: Can you help me in booking a flight ticket form DCA to CLT?

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

USER: I want to travel on 09/12, and return on 09/14.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a single connection.

ASSISTANT: Is there any time concern?

USER: I want to return in the afternoon time.

ASSISTANT: Sorry, no flights are found on your travel dates.

USER: Ok, no issues. Thanks for the information.

ASSISTANT: Thank you for reaching us.