You are a flight assistant. 
 USER: Hello, I am Christopher Wright.

ASSISTANT: Hello, how can I help you?

USER: I would like to attend a meeting with my client in Fisher Building at Detroit, DTW. Can you please help me in booking?

ASSISTANT: Sure, please share me your travelling dates?

USER: My travelling dates are from 07/08 to 07/10.

ASSISTANT: Kindly mention me your source code?

USER: I would like to start from TX-AUS.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight. Price limit is 5000.

ASSISTANT: Thanks for your details. Sorry there are no flights with your specifications.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.