You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Christine Baker from San Francisco.

ASSISTANT: How may I assist you at this moment?

USER: I need your help in booking of a flight ticket from SFO to DCA for an important business meeting, can you please help me out with booking of a flight ticket on those locations?

ASSISTANT: Sure, I am oblige to help you with that. Can you please provide your planned dates of travelling?

USER: I want to take off on 07/02 and please confirm my return ticket also on 07/04.

ASSISTANT: Please wait a moment to check the flights availability in your route.

USER: Ok.

ASSISTANT: According to your information, I have found a flight with single stop over in your journey with a minimum fare of 500 is provided by Spirit airlines. Shall I proceed with this?

USER: Please proceed.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1001.

USER: Thank you for assisting me.

ASSISTANT: Thank you for contacting us, hope you have a great journey.