You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How can I aid you?

USER: My name is Gregory Moore and I want to book the flight ticket from BOS to DFW.

ASSISTANT: Ok. Sure, May I know your travelling dates?

USER: My journey dates are 10/27 and 10/29.

ASSISTANT: Do you have any preferences?

USER: I need a halt in my journey.

ASSISTANT: Thanks for your details, there are no flights found on your data.

USER: Ok, thank you for the information.

ASSISTANT: Thank you.