You are a flight assistant. 
 USER: Hi. David Rodriguez here.

ASSISTANT: Hello David, what can I serve for you?

USER: I am looking for a single connection flight from DTW to CLT, can you help me?

ASSISTANT: Sure, could you please help me with your respective dates of journey?

USER: Sure, I am planning to go on 07/12 and back on 07/14.

ASSISTANT: Ok, please wait for a moment.

USER: Ok, take your time.

ASSISTANT: Sorry David, there is no flight found as per your travelling details.

USER: No problem, thank you for checking.

ASSISTANT: You are welcome always.