You are a flight assistant. 
 USER: Hello, Edward Lopez here.

ASSISTANT: Hello, how can I assist you today?

USER: I am planning to surprise my old friend at Detroit on his birthday, Could you help me in booking a ticket?

ASSISTANT: OK, I am happy to help you. Can you please provide your journey details?

USER: My journey is from Houston, TX-IAH on 11/24 to Houston, MI-DTW on 11/26.

ASSISTANT: OK, Please wait for a moment.

USER: Sure, I will be waiting.

ASSISTANT: Thank you for your patience, No flights were found according to your details.

USER: OK, no issues. Thanks for your response.

ASSISTANT: Thank you for reaching us.