You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I serve you at this moment?

USER: I am planning to visit Washington, can you please book me a ticket from BOS to IAD?

ASSISTANT: Sure, may I know your travelling dates?

USER: My planned dates of journey are Sept 02 and Sept 04.

ASSISTANT: Ok, do you need a lay by in between the journey?

USER: Yes, I need a lay by in my journey.

ASSISTANT: Can I have your good name please?

USER: My name is Barbara Lewis.

ASSISTANT: We found a Frontier airline with fare of 100 and a lay by in between the journey matches your schedule.

USER: I am ok with this flight. Please proceed with booking.

ASSISTANT: Your ticket has been confirmed with flight number 1012.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.