You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you at this moment?

USER: Please make me a plane reservation with the name Melissa Davis.

ASSISTANT: Sure, we are glad to help you. Can you please forward your journey dates that you wish to travel?

USER: I need to reach New York by 06/09 as I have an appointment with my doctor and I will be returning on 06/11.

ASSISTANT: May I know at what price you are looking for airfare?

USER: I am looking for a less expensive flight with in price 500.

ASSISTANT: Kindly assign your source and destination airport codes?

USER: My origin is BOS and destination is JFK.

ASSISTANT: Thank you for sharing your details, please be on hold.

USER: Sure.

ASSISTANT: We found a connecting flight with UA airlines, flight number 1009 and the fare of 400. Shall I proceed?

USER: Yes, you can.

ASSISTANT: Your ticket has been reserved in economy class.

USER: Thanks for assisting me.

ASSISTANT: Thank you for opting us, have a safe journey.