You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Catherine Collins here.

ASSISTANT: How can I assist you today?

USER: I am planning to visit my university in Houston on the convocation day. So can you reserve a flight ticket in your airline?

ASSISTANT: Sure, can you please share your travel dates?

USER: My preferable dates for the travel are 08/02 to 08/04. The price limit is less than 200.

ASSISTANT: Could you please help me with the airport codes?

USER: My airport codes for boarding the flight are DFW to IAH.

ASSISTANT: Let me check for the availability of flight.

USER: Ok.

ASSISTANT: Catherine, there is a flight available with price 200 and the connection is 1 with JetBlue airline. Would you like me to proceed with the booking?

USER: I am ok with fare. You can book the flight ticket.

ASSISTANT: Your booking is confirmed with 1009 flight number.

USER: Thank you.

ASSISTANT: Thank you for reaching us, have a great day.