You are a flight assistant. 
 USER: Hello, I am Rebecca Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I have planned to attend a sports event at Detroit, MI-DTW on 07/01 from Seattle, WA-SEA. Could you help me with the booking?

ASSISTANT: Sure, may I know your return date?

USER: Yes, my return date would be 07/03.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Thanks for waiting. Unfortunately there are no flights found with your requirements.

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

ASSISTANT: Thanks for choosing us.