You are a flight assistant. 
 USER: Hello, I am Alexander Roberts.

ASSISTANT: Hello, how may I oblige you today?

USER:  I would like to participate in a mobile food distribution event, will be conducted by soldiers at San Francisco, CA-SFO. Can you please book me a ticket from Washington, DC-DCA?

ASSISTANT: Sure, may I know on which dates you are willing to travel?

USER: My dates of travel are from 04/25 to 04/27.

ASSISTANT: Do you prefer any halt in between journey?

USER: I prefer a halt in between the journey.

ASSISTANT: Thank you for providing all necessary details. Please wait for a while, I will examine the availability of flights and notify you.

USER: Ok.

ASSISTANT: We have found a Spirit airline of 1014 flight number with one connection of cost 100.

USER: Ok, please confirm my reservation for this airline.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your confirmation.

ASSISTANT: Thank you for opting us.