You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Benjamin Martin.

ASSISTANT: How can I assist you today?

USER: I would like to book a ticket to OAK from LAS, can you please help me out?

ASSISTANT: Sure, please mention your travelling dates.

USER: I am travelling on these dates 07/20 and 07/22.

ASSISTANT: Please give me a moment.

USER: Ok. Make sure the connection limit 0.

ASSISTANT: Thank you for waiting. There is no flights found with connections 0.

USER: Ok no problem, thank you for your services.

ASSISTANT: Welcome, have a great day.