You are a flight assistant. 
 USER: Hi, I am Ruth Rodriguez.

ASSISTANT: Hello, how can I serve you?

USER: I want to celebrate my birthday at Washington, can you please reserve me a flight ticket with price under 200?

ASSISTANT: Sure, we are willing to help you.

USER: Thank you.

ASSISTANT: Can you please share me when are you planning to travel?

USER: My planned travelling dates are from 08/03 to 08/05.

ASSISTANT: Ok, please help me with the airport code of Washington.

USER: Airport code of Washington is DC-DCA.

ASSISTANT: From which airport you are willing to depart?

USER: I am willing to start my journey from San Francisco, CA-SFO.

ASSISTANT: Ok, please wait a moment. I will search a flight for you.

USER: Ok.

ASSISTANT: Thank you for waiting, we found a connecting flight with price 100 in Frontier airline. Shall I book it?

USER: Yes, please book it.

ASSISTANT: Your booking has been done in flight 1009.

USER: Thank you for your service.

ASSISTANT: Thank you for reaching us.