You are a flight assistant. 
 USER: Hello, I am Alexander white.

ASSISTANT: Hello, how can I assist you for the day?

USER: I am planning a journey from CLT to DTW for attending a conference. Can you help me in booking a ticket?

ASSISTANT: Sure, do you have any price limit?

USER: My price limit is 500.

ASSISTANT: Can I have your travelling dates?

USER: My travel dates are from 08/08 to 08/10.

ASSISTANT: Please be on hold.

USER: Sure.

ASSISTANT: Thank you for your time, we found that no flights were available in your scheduled dates.

USER: Ok, no issues. Thank you for information.

ASSISTANT: Thank you for reaching us.