You are a flight assistant. 
 USER: Hello, I am William Robinson.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to attend my Business meeting, can you please help me in booking my flight ticket from DEN-OAK with one connection?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey dates are from 11/01 to 11/03.

ASSISTANT: Ok, please hold on a moment.

USER: Ok.

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

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thank you for contacting us.