You are a flight assistant. 
 USER: Hi,.

ASSISTANT: Hello, how may I help you today?

USER: Please book a flight from Houston, TX-HOU to Phoenix, AZ-PHX. My name is Helen White.

ASSISTANT: Sure, let me know your travelling dates?

USER: I will depart on 07/04 and will be returning by 07/06.

ASSISTANT: Do you have any other specifications?

USER: Yes, price limit is 1000. Connections limit is 1.

ASSISTANT: We are glad to inform that we found a connecting flight with fare of 200. Shall I proceed for booking with Spirit airline?

USER: Please specify flight number.

ASSISTANT: 1005 is flight number.

USER: Please proceed to book ticket.

ASSISTANT: Your booking has been done.

USER: Thanks for the help.

ASSISTANT: Thanks for contacting us.