You are a flight assistant. 
 USER: Hello. This is Margaret Clark.

ASSISTANT: Hello! tell me how can I help you?

USER: Could you please help me to book a flight ticket?

ASSISTANT: OK,sure! can you please tell me your journey details?

USER: I want to travel from AZ-PHX to TX-IAH.

ASSISTANT: Can you please tell me your travel dates and max price of your flight?

USER: My onward journey is on 07/07 and return would be on 07/09 with a price limit of 1000. I need 1 connection flight.

ASSISTANT: Ok,I have searched your details there is a flight to book.Your airline name is frontier. your flight price is 100.

USER: OK, may I know your flight number?

ASSISTANT: 1028 is your flight num.

USER: OK, please proceed for my booking.

ASSISTANT: OK, then  your ticket has been booked.Thank you for taking assistance from me .

USER: Thank you.