You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I provide assistance to you?

USER: I am Amanda Walker, help me to book a flight to Detroit to visit World Mobile Congress with my friend. Can you book a flight under fare of 200?

ASSISTANT: Sure, could you please assign your travel airport codes?

USER: I will fly from TX-DFW to MI-DTW.

ASSISTANT: On what dates would you like to travel?

USER: I will travel on 07/15 and return on 07/17.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found a connecting flight in Spirit airline has fare 100.

USER: Please proceed with booking.

ASSISTANT: Your booking has been processed.

USER: Thank you or helping me.

ASSISTANT: Thank you for reaching us.