You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: I am Sandra Taylor. I want to book a flight ticket to attend an event at CO-DEN. Can you help me?

ASSISTANT: Sure, may I know your journey dates?

USER: 1210 and 12/12 are my journey dates.

ASSISTANT: Ok, from which airport will you start?

USER: NC-CLT will be my source airport code.

ASSISTANT: Do you have any other specifications?

USER: I need flight ticket within 200.

ASSISTANT: Sorry, there is no flight available within price 200.

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

ASSISTANT: Thank you for picking us.