You are a flight assistant. 
 USER: Hi. I am Angela Perez.

ASSISTANT: Hello, how can I help you today?

USER: I want to drop my brother in San Francisco, CA - SFO on 06/08. Can you please book a ticket?

ASSISTANT: Sure, can you please mention your price and connection limit?

USER: 5000 is my price limit and I need one connection.

ASSISTANT: Kindly ensure your arrival date?

USER: 06/10 is my arrival date.

ASSISTANT: Please mention your boarding point?

USER: My nearest boarding airport is Washington DC - DCA.

ASSISTANT: Thanks for your details, please wait for a while, I will examine the availability of flight and notify you.

USER: OK.

ASSISTANT: We found a flight in Southwest airline with fare 100 matching your criteria.

USER: Please book it.

ASSISTANT: Your ticket has been reserved.

USER: Ok, thank you.

ASSISTANT: Thank you for reaching us. Have a nice day.

USER: I am happy with your service.