You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am David Carter, Could you help me to book a flight ticket from PHX to PHL?

ASSISTANT: Sure, please share your specifications.

USER: I need a single halt.

ASSISTANT: Let me know your travelling dates.

USER: My travel dates are on Apr 22 and Apr 24.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: We found a AA airlines with single connection and flight number is 1012. Shall I proceed?

USER: You can proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you.

ASSISTANT: Thank you for reaching us.