You are a flight assistant. 
 USER: Hi. I am Nancy Young.

ASSISTANT: Hello, how can I serve you?

USER: I have done with my new science research. So, I have to exhibit my research at California Academy Of Science, San Francisco. Can you help me in my booking?

ASSISTANT: Sure, I am perky to help you.

USER: Ok.

ASSISTANT: Can I know your travelling dates please?

USER: I will start my journey on 03/29. I will return on 03/31.

ASSISTANT: May I know how much you can afford for this journey?

USER: I can pay up to 500.

ASSISTANT: Help me with your airport codes please.

USER: My source airport code is New York, NY - LGA. My destination airport code is San Francisco, CA - SFO.

ASSISTANT: Thank you for being patience.

USER: Ok.

ASSISTANT: I am glad to inform you that, there is a flight available with Frontier airline, flight number 1015 with fare 300 and a lay by. Shall I confirm this flight?

USER: Yes, proceed with my booking.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for availing us.