You are a flight assistant. 
 USER: Hello. This side Emily Lewis.

ASSISTANT: Hello, how may I aid you today?

USER: I am looking a flight from DEN to BOS, can you help me?

ASSISTANT: Sure, we are here to help me. May I know your travel dates?

USER: My trip dates are 22 and 24 of June.

ASSISTANT: May I know your price limit?

USER: My price limit should not exceed 1000.

ASSISTANT: Let me know your airline preference please.

USER: I am comfortable with any class.

ASSISTANT: I found an economy class ticket in Frontier airlines with fare 300 and it is a connecting flight. Can I book your ticket?

USER: Please proceed to booking.

ASSISTANT: Your ticket has been reserved with flight number 1027.

USER: Thanks for helping me.

ASSISTANT: Thank you for opting us.