You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Thomas.

ASSISTANT: How can I help you today?

USER: I would like to travel BOS from PHL, can you please book a flight?

ASSISTANT: Can I know your dates of journey?

USER:  Make sure that the price limit should not exceed 5000 and connection limit should be 1. My travelling dates are 10/20 to 10/22.

ASSISTANT: Basis on your details, I got a flight with flight number 1015.

USER: Yes, you can proceed the booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: You are welcome.