You are a flight assistant. 
 USER: Hi, I am Charles Hall.

ASSISTANT: Hello, how can I assist you?

USER: I would like to travel from TX - IAH to CA - LAX, so please help me to book a flight ticket with a connection.

ASSISTANT: Sure, when would you like to return?

USER: I would like to return on 07/31.

ASSISTANT: Ok, May I know your depart date?

USER: My departure date is on 07/29.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for being patient, There is a flight found in 1009 Frontier plane with price 100. Shall I proceed for booking with a halt?

USER: Ok, please proceed for booking.

ASSISTANT: Sure, your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for availing us.