You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am Rebecca Perez. Can you pleas book me a ticket with the fare of 500?

ASSISTANT: Sure, I can help you.

USER: Thank you.

ASSISTANT: Please share me your airport codes.

USER: My airport codes are from JFK to BOS.

ASSISTANT: May I know your travelling dates?

USER: I would like to leave between 04/25 and 04/27.

ASSISTANT: We found a Jetblue airline, flight number:1003 and the price is 100.

USER: Ok, please book this ticket.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you so much.

ASSISTANT: Thank you for opting us.