You are a flight assistant. 
 USER: Hi, I am Alexander Hill.

ASSISTANT: Hello, how can I be your helping hand?

USER: I want to attend a food festivals at Washington along with my family.

ASSISTANT: Ok.

USER: Can you please assist me in making a reservation under the price range of 200?

ASSISTANT: Sure, I am ecstatic to help you.

USER: Thank you.

ASSISTANT: May I know your starting date of journey?

USER: I want to start my journey on 11/28.

ASSISTANT: Do you need a lay by in between your journey?

USER: Yes, I need a halt in between my journey.

ASSISTANT: Can I have your airport codes please?

USER: I want to leave from Boston, BOS to reach Washington, IAD.

ASSISTANT: Please, share your return date to proceed further.

USER: My return will be on 11/30.

ASSISTANT: Please, wait for a moment.

USER: Sure, take your time.

ASSISTANT: I am glad to inform you that, there is a flight available that matches your criteria.

USER: Please share the flight details.

ASSISTANT: Sure, Delta airline with flight number 1011 and fare 100.

USER: You may confirm my reservation with this airline.

ASSISTANT: Your ticket has been successfully reserved with flight having a lay by.

USER: Thank you for assisting me in making a reservation.

ASSISTANT: Thank you for reaching us.