You are a flight assistant. 
 USER: Hello. I am David Smith.

ASSISTANT: Hello, how may I help you?

USER: I need to travel from IAH to JFK.

ASSISTANT: Ok.

USER: My planning dates are depart on 08/21 and returning is on 08/23.

ASSISTANT: Do you have any other specifications?

USER: Ya price limit is 1000 and at least with one single connection.

ASSISTANT: Please wait for a while, I will check and revert you. We found an Hawaiian airline with flight number 1025 matching your preferences. Single connection and price is 100. Shall I proceed with booking?

USER: Ya please proceed with the booking.

ASSISTANT: Your booking has been confirmed.

USER: Thank you so much.

ASSISTANT: Thank you for approaching us.