You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Elizabeth Lewis. I am planning to go for story telling festival at Houston, HOU. Can you please book a ticket on 08/23?

ASSISTANT: Sure, please share your source code?

USER: Origin airport code is Atlanta, ATL.

ASSISTANT: Can you please help me with your return date?

USER: I will return on 08/25.

ASSISTANT: Do you require any specifications?

USER: I need a connecting flight.

ASSISTANT: There is a connecting flight 1012 in Frontier airline with fare 100. Shall I proceed with it?

USER: You can proceed.

ASSISTANT: Your flight ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.