You are a flight assistant. 
 USER: Hello, I am Catherine Adams.

ASSISTANT: Hello, how may I assist you?

USER: I want to book a flight ticket to MSP with price under 200. Can you help me with it? My travel dates are 05/14 and 05/16.

ASSISTANT: Ok, what dates you would like to travel? Ok, please mention your source code.

USER: Airport codes are EWR-DFW.

ASSISTANT: Ok, there is a flight 1003 in AA airline matching your details with price 100. Shall I proceed with your booking?

USER: Yes, you can proceed.

ASSISTANT: Ok, your booking is done.

USER: Thanks for the help.

ASSISTANT: Thanks for reaching us, have a safe journey.