You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Melissa Thomas.

ASSISTANT: Melissa, how can I aid you?

USER: I need to book a ticket with fare of 200 to visit the Freedom Park with my family members.

ASSISTANT: Sure, I am glad to help you. Please let me know your trip dates.

USER: My travelling dates are 06/28 and return on 06/30.

ASSISTANT: Ok, may I know your source and destination airport codes?

USER: My airport codes are JFK and CLT.

ASSISTANT: Ok, please wait. I will check for the available flights and get back to you.

USER: Sure.

ASSISTANT: There is a flight available with economy class in Hawaiian airlines and the ticket fare is 100 only. Is that ok for you?

USER: Actually, I can pay up to 200. But I am comfortable with this airline, you can proceed with booking.

ASSISTANT: Sure, I have confirmed your ticket and your flight number is 1003.

USER: Thank you so much you helped me in searching a flight with fare of 100.

ASSISTANT: You are most welcome and thank you for choosing us.