You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, hoe may I serve you today?

USER: I am Frank Gonzalez, help me to book a connecting flight to attend meeting. Can you book a flight to DC-IAD.

ASSISTANT: Sure, I will help you. May I know your your destination point?

USER: My source point is DC-DEN.

ASSISTANT: Ok, thank you. Can I know your budget limit?

USER: My budget is 1000.

ASSISTANT: May I know your travelling dates?

USER: I will fly on 02/14 and return on 02/16.

ASSISTANT: We found a flight on Hawaiian airline, flight number 1015 with the fare of 100.

USER: Please proceed with booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you for helping me.

ASSISTANT: Thank you for availing us.