You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you?

USER: I am Eric Lewis. I want to travel for the Boston Harbour island with my friends during my holidays, located at Boston.

ASSISTANT: Ok.

USER: Can you book me a ticket within the range 5000?

ASSISTANT: Sure, help me with the trip dates please?

USER: I want to travel on 11/19 and need to catch return flight on 11/21.

ASSISTANT: May I know your airport codes that you wish to board and land?

USER: I need to leave from my nearest airport HOU to reach BOS.

ASSISTANT: We have found a flight in an airline Spirit with 1019 number having a single connection price of 100.

USER: Proceed with the booking.

ASSISTANT: Your flight ticket has been reserved in an economy class.

USER: Thanks for the help.

ASSISTANT: Thank you for opting us.