You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you today?

USER: I am Ruth Martinez. I want to book a flight ticket from CA-OAK to DC-IAD. Can you help me?

ASSISTANT: Sure, please share your planned trip dates?

USER: 09/17 and 09/19 are my travelling dates.

ASSISTANT: Ok, any other requirements to be met?

USER: 500 is my fare.

ASSISTANT: Ok, please wait for a while. Thanks for waiting, flight- 1021, airline- UA, price- 100 with connection-1 matches your requested details.

USER: Ok. You can reserve it.

ASSISTANT: Ok, your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for opting us.