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

ASSISTANT: Hello, how can I help you?

USER: As my plan to meet my friend to start a new business, can you help me to book a connecting flight?

ASSISTANT: Sure, let me know your travelling dates please.

USER: 02/25 and 02/07 are my travelling dates.

ASSISTANT: Could you please mention your journey airport codes?

USER: I need to leave from Houston, TX-IAH to reach Detroit, MI_DTW.

ASSISTANT: How much can you afford for the flight ticket?

USER: I can pay up to 1000.

ASSISTANT: Thank you for sharing your details.

USER: Ok.

ASSISTANT: We didn't found flights found according to your requirements.

USER: That's ok, I'll choose another alternative. Thanks for your assistance.

ASSISTANT: Thank you for being with us.