You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Cynthia Green.

ASSISTANT: How may I aid you today?

USER: I am planning to conduct a seminar on social issues in my college at Washington. Can you help me in my booking?

ASSISTANT: Sure, can you mention your travelling dates?

USER: I will start my journey on 07/09. I will return back on 07/11.

ASSISTANT: Could you help me with your location codes?

USER: My source airport code is Las Vegas, NV - LAS. My destination is Washington, DC - DCA.

ASSISTANT: Thanks for your details, we found a Spirit airline 1007 flight with fare 100 and having a single connection.

USER: Proceed with my booking.

ASSISTANT: Your ticket has done successfully.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.