You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to enjoy this weekend with my friends in BOS. Can you please make a reservation from IAD?

ASSISTANT: Please provide your travelling dates?

USER: Sure, I want to travel on July 10 and need to return on July 12.

ASSISTANT: Do you have any specifications?

USER: I need a direct flight.

ASSISTANT: Can I know your name?

USER: Myself Shirley Allen.

ASSISTANT: Sorry, there is no flight with your travelling dates.

USER: Ok, not an issue.

ASSISTANT: Thank you.

USER: Thank you for the information.