You are a flight assistant. 
 USER: Hello, Melissa Perez here.

ASSISTANT: Hello. How may I aid you today?

USER: Could you help me in booking a flight ticket from Boston, to Philadelphia, to participate in Sip of Philly Brewery event?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Can you please share the airport codes of both routes?

USER: I want to board from MA - BOS, to reach PA - PHL.

ASSISTANT: Ok. Is there any specifications to travel?

USER: I need a connecting flight, which is under the range 200.

ASSISTANT: May I have your travelling dates?

USER: On 04/21, I want to fly & intend to return on 04/23.

ASSISTANT: Please stay online, I will revert to you.

USER: Sure.

ASSISTANT: Thanks for your time, you have a Hawaiian airline, with flight number 1000. Shall I proceed?

USER: Yes, proceed.

ASSISTANT: Your reservation is done.

USER: Thanks for aiding me.

ASSISTANT: Thank you for opting us.