You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Robert Robinson.

ASSISTANT: In what way can I help you?

USER: I am planning to book a flight ticket from DFW to ORD. Could you please help me with booking?

ASSISTANT: Sure, when will be your travelling dates?

USER: My travelling dates are 05/10 and 05/12.

ASSISTANT: Do you prefer a halt?

USER: Yes,  I need a single halt in my journey.

ASSISTANT: Thank you for your details, there are no flights found with the specified travelling dates.

USER: Ok, no problem, thank you for the information.

ASSISTANT: Thank you for choosing us, hope we serve you next time.

USER: Thank you for searching.