You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. What service do you need from our travel agency?

USER: Can you book a flight ticket with a connection limit of 1 on my name Elizabeth Williams?

ASSISTANT: Sure, I  am here to help you. Can you please provide me your travel dates?

USER: Sure, my travelling dates are on 12/22 and back on 12/24.

ASSISTANT: Ok, which airport codes do you prefer to travel?

USER: I would like to travel form DTW to ORD.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry to inform you, there are no flights found with the details you have provided.

USER: Ok, no problem with that one, thank you for your help.

ASSISTANT: You are welcome, thank you for contacting us.