You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Williams.

ASSISTANT: Is there any emergency that I can help you out right now?

USER: I am planning to visit Washington to participate in rally, can you please book me a ticket from OAK to DCA?

ASSISTANT: May I know your travelling and return back journey dates to book a flight ticket?

USER: My preferable journey dates are from 12/29 to 12/31.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: I have checked based on your request, there is a flight 1016 providing by Frontier airlines with a fare of 100 and there is a 1 stop and go flight in your journey, can I book the ticket?

USER: Please reserve my ticket with this airlines.

ASSISTANT: Ok, your ticket reservation has successed on your journey dates.

USER: Thank you for booking my ticket.

ASSISTANT: It's my pleasure to servce you and have a happy journey.