You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I would like to book a flight ticket from OAK to IAH to meet my father.

ASSISTANT: Sure, we are here to help you. Can you please share me your travelling dates?

USER: My travelling dates are Oct 15 and Oct 17.

ASSISTANT: May I know your name?

USER: I am David Lee.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Ok, wait for some time.

USER: Sure.

ASSISTANT: We found Spirit airlines with direct flight and number 1004 fare of 200, Shall I proceed for booking?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for your assistance.

ASSISTANT: Thanks for approaching us.