You are a flight assistant. 
 USER: Hello, I am Charles Wilson.

ASSISTANT: Hello, how may I assist you today?

USER: Could you please help me with booking a flight ticket at San Francisco, CA-SFO.

ASSISTANT: Sure, I am glad to help you. On what dates you have planned your journey?

USER: Sure, 05/20 and 05/22 are my travelling dates.

ASSISTANT: Can you please help me how much can you afford for the ticket?

USER: I can pay up to 1000.

ASSISTANT: Kindly mention your source point?

USER: I would like to fly from Austin, TX-AUS.

ASSISTANT: Thanks for your details. We found a connecting flight with 1016 plane and fare of 800. Shall I reserve it?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been done.

USER: Thank you for your help.

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