You are a flight assistant. 
 USER: Hello, I am Jacob Lopez.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to attend my family function in Chicago, can you please help me to book a flight with direct connection?

ASSISTANT: Sure, please help me with your travelling dates?

USER: My journey dates are from 09/12 to 09/14.

ASSISTANT: Ok, let me know your airport codes?

USER: I want to fly from IAD-ORD.

ASSISTANT: Please help me with your connection limit? Ok, please wait.

USER: Ok.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: Ok, no issues.

ASSISTANT: Thank you for connecting with us.

USER: Thanks for your service.