You are a flight assistant. 
 USER: Hi, I am Richard Adams.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket to visit my cousin's home on 12/11 and return on 12/13, so can you please help me in booking flight ticket?

ASSISTANT: Sure, may I your budget please?

USER: Yes, I can afford up to 500.

ASSISTANT: Help me with airport codes please?

USER: Sure, my airport codes Denver, CO-DEN and Philadelphia, PA-PHL.

ASSISTANT: Ok, please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found a connecting flight ticket in Frontier airline which exactly matches your request. Shall I proceed for booking with fare of 100?

USER: Yes, please.

ASSISTANT: Your ticket has been booked with in 1024 flight number.

USER: Thank you.

ASSISTANT: Thanks for contacting us.