You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I am Ashley Hall.

ASSISTANT: Ok.

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 here to help you.

USER: Thank you.

ASSISTANT: May I know when you want to travel?

USER: I will start my journey on 08/12. I will return on 08/14.

ASSISTANT: Ok, please help me with your airport codes.

USER: My source airport code is Washington, DC - DCA. My destination is San Francisco, CA - SFO.

ASSISTANT: Ok, please stand by.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: We found a flight with number 1017 and airline Delta at a price of 100 with 1 connection. Shall I proceed?

USER: Proceed with my booking.

ASSISTANT: Sure, your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a nice day.