You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I support you?

USER: On 10/23 it's my sister marriage anniversary. So can you please book me a flight ticket to Austin with a grand surprise?

ASSISTANT: Sure, may I know your airport codes?

USER: Sure, my airport codes are from IAH to AUS.

ASSISTANT: Please provide your return journey date.

USER: I need to return on 10/25.

ASSISTANT: Spirit airlines with single connection and price is 200 of 1007 flight. Shall I proceed for booking?

USER: Ok, please proceed for booking.

ASSISTANT: Booking your ticket has been confirmed.

USER: Thanks for your kind help.

ASSISTANT: May I know your name?

USER: Ruth Nelson is my name.

ASSISTANT: Thank you.