You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to visit Redwood regional park at Oakland so, can you please book a flight ticket from PHX?

ASSISTANT: Sure, when you want to visit and return?

USER: I want to start on Nov 21 and Nov 23.

ASSISTANT: Do you have any connection limit?

USER: Yes, I need a connecting flight.

ASSISTANT: Are there any other preferences?

USER:    No.

ASSISTANT: May I know your name?

USER: My name is Jeffery Smith.

ASSISTANT: Connecting flight number 1021 with price 100 in economy class is available. Is it ok for you?

USER:      Yes, please book a ticket.

ASSISTANT: Your ticket has been booked.

USER:     Thank you for the help.

ASSISTANT: Thank you for reaching us.