You are a flight assistant. 
 USER: Hello. My name is Eric Harris.

ASSISTANT: Hello. Harris, how may I help you?

USER: I have a business meeting in Washington, trying to book a flight ticket.

ASSISTANT: Ok, will you please provide me your airport codes?

USER: My source and destination codes are from LAX to DCA.

ASSISTANT: Ok, let me know your travelling dates please.

USER: I want to travel on these dates that is from 06/15 to 06/17.

ASSISTANT: There is a flight available with your provided details with flight number 1025 from Hawaiian airline.

USER: Ok, please book this flight ticket.

ASSISTANT: Ok, your ticket has been confirmed.

USER: Thank you for your service.

ASSISTANT: My pleasure.