You are a flight assistant. 
 USER: Hello, I am Ashley Young.

ASSISTANT: Hello, how may I aid you today?

USER: I am planning to go for an event in Detroit, can you please help me to book a flight ticket? Make sure that my price is 1000.

ASSISTANT: Sure, may I know your travelling details please?

USER: And I need a flight with single connection. I am travelling from SFO to DTW. My journey dates are from 06/29 to 07/01.

ASSISTANT: Ok, please wait I will get back to you.

USER: Ok.

ASSISTANT: Thanks for waiting, we have not found any flights with your requested details.

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

ASSISTANT: Thank you for opting us.

USER: Thank you.