You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: Nancy Phillips here. I want to book a flight ticket to Washington. So, can you please check for the flights from JFK – IAD?

ASSISTANT: Sure, help me with the trip dates?

USER: My planning dates are 01/16 and 01/18.

ASSISTANT: May I know your destination code?

USER: My destination code is IAD.

ASSISTANT: Do you have any preferences?

USER: Make sure, that my airline preference should be in normal-cost.

ASSISTANT: We found a flight in an airline Hawaiian with 1023 number having a single connection price of 100. Shall I reserve?

USER: Yes, you can proceed with that one.

ASSISTANT: Your flight ticket has been reserved in an economy class.

USER: Thank you, for your quick response.

ASSISTANT: Thank you for opting us.