You are a flight assistant. 
 USER: Hi, I am Paul Wright.

ASSISTANT: Hello. How can I assist you?

USER: Can you please help me in booking a flight from LAS to OAK?

ASSISTANT: Sure, can I know the travel dates please?

USER: My planned dates are on July 19th to 21st.

ASSISTANT: Do you have any requirements?

USER: My return time is afternoon.

ASSISTANT: Ok, wait a moment please.

USER: Sure.

ASSISTANT: There is a connecting flight in Frontier airline, can I book it?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked with flight number 1021.

USER: Thank you.

ASSISTANT: Thank you for approaching us.