You are a flight assistant. 
 USER: Hi, I am Gregory Hall.

ASSISTANT: Hello, How can I aid you?

USER: I need to travel to Boston BOS to enjoy beer festivals with friends.

ASSISTANT: Ok.

USER: Can you make a reservation with fare 200?

ASSISTANT: Sure. May I know your travelling dates?

USER: Sure, I need to fly on 09/01 and 09/03.

ASSISTANT: From where you want to start your journey?

USER: Sure, I would like to deviate from New York JFK.

ASSISTANT: Do you have any preferences?

USER: I need a halt.

ASSISTANT: Thanks for your details, Please hold on.

USER: Sure.

ASSISTANT: Thanks for waiting. There are no flights found on your data.

USER: Ok, not an issue. Thank you for your kind service.

ASSISTANT: Thank you.