You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am planning to visit Houston, can you please book me a ticket with a ticket fare under 200?

ASSISTANT: Sure, may I know your preferable dates to travel?

USER: My planned dates of journey are from 01/06 to 01/08.

ASSISTANT: Can you please share your source and destination airport codes?

USER: My nearest airport code to take off is OAK and nearest airport code to land on IAH.

ASSISTANT: May I know your good name please?

USER: My name is Stephen Moore.

ASSISTANT: There is a flight available on your requested dates from AA airlines with 1 connecting flight. Shall I confirm your booking?

USER: Please book my ticket with this airlines.

ASSISTANT: Your ticket is booked with flight 1002.

USER: Thank you for booking my ticket.

ASSISTANT: You are most welcome.