You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Gregory Campbell. I am planning to attend music concert at ORD, can you please help me with booking a flight ticket from SEA?

ASSISTANT: Sure, I am here to help you but I need some of your travelling details to find a flight, can you please help me in providing your journey dates that you have planned for your trip?

USER: Sure, I would like to take off on Feb 13 and return on Feb 15.

ASSISTANT: Do you need any halt in between your journey?

USER: Yes, I need a halt in between the journey.

ASSISTANT:  Sorry, I could not able to find any flight at this moment for the given schedule.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thanks for choosing us, have a great day.

USER: You are welcome.