You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: I am Joseph Smith, I want to book a flight with one connection to visit my grand father home. Can you book a flight under fare of 500?

ASSISTANT: Sure, please mention your travelling dates.

USER: I will travel on 10/26 and return on 10/28.

ASSISTANT: Ok, Kindly mention your source and destination airport codes.

USER: My source point is CA-SFO and destination is TX-HOU.

ASSISTANT: Ok, please wait for a moment.

USER: Sure.

ASSISTANT: Thank you for waiting, There is a flight found in 1013 Spirit airline with a halt. Shall I proceed with booking?

USER: Please proceed with booking.

ASSISTANT: Sure, your ticket has been booked with a fare of 200.

USER: Thank you for helping me with booking.