You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Alexander Turner.

ASSISTANT: How may I help you?

USER: I have a meeting to attend at Detroit. Can you help me in booking a ticket?

ASSISTANT: Sure, please help me with your airport codes.

USER: The journey airport codes are ORD and DTW.

ASSISTANT: May I know your journey dates please?

USER: I am planning to travel on dates 04/06 and 04/08.

ASSISTANT: Turner, no flights has been found on your requested dates.

USER: That's fine, I will find other way out. Thank you for the information.

ASSISTANT: Thank you for approaching us.