You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I have planned to book a plane ticket from HOU to OAK, can you assist me?

ASSISTANT: Sure, may I know your travel dates?

USER: My preferred dates are Apr 20th and Apr 22nd.

ASSISTANT: Do you have any specifications?

USER: I need single connection between my trip.

ASSISTANT: May I know your name?

USER: Larry Williams.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: We found an airline Frontier with flight 1023 having a fare 100 with stopover. Shall I proceed?

USER: Proceed.

ASSISTANT: Your booking has been processed.

USER: Thank you for booking.

ASSISTANT: Thank you.