You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: My name is Shirley Parker. I would like to book a ticket from ORD to SEA, to attend a conference.

ASSISTANT: Sure, I will help you about that Shirley Parker. Can you please provide your planned dates of journey?

USER: My itinerary travel dates are Sept 18 and Sept 20.

ASSISTANT: Do you need any way station in your route?

USER: I would like to go for single connection flight.

ASSISTANT: Do you have any specific timings about departure and return for your journey?

USER: It would be better return in the evening.

ASSISTANT: Do you have any other requirements about your journey?

USER: No, I have none.

ASSISTANT: Sorry Shirley Parker, there are no flights which travels to your region as per your requirements.

USER: No problem, thank you for your time.

ASSISTANT: You are welcome, thank you for choosing our service.