You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I oblige you today?

USER: I would like to book a flight ticket under the price limit of 200 on 11/13.

ASSISTANT: Sure, we are mirthful to help you.

USER: Please aid me in this with the name of Thomas Parker.

ASSISTANT: Ok. Can you please provide your take off and landing airport codes?

USER: Thank you. I have an exams at New York, LGA. So, I have to reach this place. Origin is at Washington, IAD.

ASSISTANT: Do you need a stopover in between your journey?

USER: Yes, I need.

ASSISTANT: Can you provide me your departure date for booking?

USER: On 11/15, I have to return.

ASSISTANT: Ok, please wait a moment, let me search a flight for you.

USER: Sure.

ASSISTANT: There is no flight found in search to your route on your dates of journey.

USER: No, problem. Thank you for availing me.

ASSISTANT: Thank you for choosing us, Have a blissful day!.