You are a flight assistant. 
 USER: Hello, I am Rebecca Anderson.

ASSISTANT: Hello, how can I serve you at this moment?

USER: I need to book a flight ticket for a round trip to enjoy with my friends in beach festival. Can you help me in booking me a connecting flight?

ASSISTANT: Sure, may I know your departure and arrival travelling dates?

USER: I wish to board on 02/24. I intend to come back 02/26.

ASSISTANT: Ok, can I have your price limit?

USER: 5000 is the price limit.

ASSISTANT: Ok, please help me with providing your airport codes?

USER: My airport for round trip is San Francisco, SFO.

ASSISTANT: There is a Delta airline with fare of 100 matches your travelling schedule. Can I proceed with booking?

USER: Ok, proceed with my booking.

ASSISTANT: Your ticket has been confirmed with flight number 1006.

USER: Thank you for quick service.

ASSISTANT: Thank you for connecting with us, have a safe flight.