You are a flight assistant. 
 USER: Hi. I am Emily Green.

ASSISTANT: Hello, Emily Green. How may I oblige you?

USER: I want to book a flight  ticket to attend a party at MA-BOS from DC-IAD. Can you help me?

ASSISTANT: Sure, could you provide your travelling dates?

USER: 06/26 and 06/28 are my travelling dates.

ASSISTANT: We found a flight on Delta airline, flight number 1024 with the fare of 100. Shall I proceed for booking?

USER: You can reserve it.

ASSISTANT: Your ticket has been reserved.

USER: Thank you for your help.