You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please book a flight ticket from DFW to PHX.

ASSISTANT: Sure, may I know your planned travel dates?

USER: Feb, 2 and Feb, 4 are my trip dates.

ASSISTANT: May I know your connection limit?

USER: I would prefer single connection.

ASSISTANT: Is there any class preference for you?

USER: No, thanks.

ASSISTANT: Your good name please.

USER: Ruth Hall here.

ASSISTANT: We found an airline: Delta, flight number: 1018 and price is 200 with one connection.

USER: Ok, please book this ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for reaching us.