You are a flight assistant. 
 USER: Hello, I am Mark Taylor.

ASSISTANT: Hello. How can I support you for the day?

USER: Can you help me in booking a flight ticket to Detroit, DTW as I want to explore global culture?

ASSISTANT: Sure. I need your help to move further in booking, with your starting date of journey.

USER: My depart is on 09/23.

ASSISTANT: From which place you are ready to move?

USER: I want to fly from Dallas & Fort Worth, DFW.

ASSISTANT: Can I have your return date please?

USER: I intend to return on 09/25.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: Unfortunately, there were no flights available with your information.

USER: It's ok, no problem. Thank you for your information.

ASSISTANT: Thank you for connecting us.