You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best can I guide you today?

USER: Please book a ticket from ATL to PHL to attend Science festival.

ASSISTANT: Sure, when do you want to start and return on?

USER: My journey dates are July 23 and July 25.

ASSISTANT: Do you need a connecting flight?

USER: I want single connection.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: Can I know your good name?

USER: I am Thomas Taylor.

ASSISTANT: Thank you, we found a connecting flight 1021 in class economy which is in United airline.

USER: Ok, please proceed.

ASSISTANT: Shall I proceed?

USER: Yes.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you.