You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I serve you at this moment?

USER: I need to book a flight ticket from OAK to LAS, Can you please help me for booking?

ASSISTANT: Sure, do you need any lay by in between the journey?

USER: I need a connecting flight in between my journey.

ASSISTANT: Ok, please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: May I know your travelling dates please?

USER: I would like to travel on 04/04 to return on 04/06.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I have your name please?

USER: Kathleen Collins here.

ASSISTANT: We found a Delta airlines with fare of 100 and economy class matches your schedule.

USER: Ok, proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1001.

USER: Thanks for your information.

ASSISTANT: Thank you for reaching us.