You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

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

ASSISTANT: Sure, I am here to help you. May I know your journey dates please?

USER: Sure, my journey dates are June 02 and June 04.

ASSISTANT: Ok, please share your connection limit.

USER: I need a connecting flight.

ASSISTANT: In which class, you prefer to go?

USER: I always prefer economy class.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I have your name please?

USER: My name is Jack Jones.

ASSISTANT: Ok, please wait.

USER: Sure, take your own time.

ASSISTANT: Thank you for waiting, no flights were found based on your schedule.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for contacting us.