You are a flight assistant. 
 USER: Hello, I am Anthony Davis.

ASSISTANT: Hello, how may I aid you today?

USER: I need to attend a press meet at Phoenix, I would like to travel from Houston. Can you help me book a flight ticket within the fare of 1000?

ASSISTANT: Sure, I would be happy to help you.

USER: Thank you.

ASSISTANT: Could I have your journey airport codes, please?

USER: Airport codes are from IAH to PHX.

ASSISTANT: May I know when do you want to travel?

USER: My journey dates are from 12/26 to 12/28.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting. Here is a flight in Frontier airline having a halt and fare is 100.

USER: Ok, you can proceed for booking.

ASSISTANT: Your booking has been done.

USER: Thanks for your help.

ASSISTANT: Thank you for approaching us.