You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Rebecca Jones here.

ASSISTANT: How can I help you?

USER: I want to book my round trip ticket from JFK. Can you do this for me?

ASSISTANT: Sure, help me with your travelling dates.

USER: My travelling dates are from 10/14 to 10/16.

ASSISTANT: Can you share your destination airport code?

USER: My destination  airport code is JFK.

ASSISTANT: There is  a connecting flight with fare 100, the number is 1021 in airline AA. Can I book it?

USER: Please proceed.

ASSISTANT: Your ticket is booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us.