You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you today?

USER: I am Shirley Collins. Can you please book a flight ticket from SEA to ORD?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: My preferable dates are Jan 26 and need to return on Jan 28.

ASSISTANT: Do you have any halt in between your journey dates?

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

ASSISTANT: I am sorry to say that there is no flight found under your details.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for reaching us, have a great day.