You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How may I aid you?

USER: I am Rebecca Phillips. I need to book a flight ticket from PHL to DFW, can you please help me to book a flight ticket?

ASSISTANT: On which dates you are willing to travel?

USER: Sure, my journey dates are Oct 26 and Oct 28.

ASSISTANT: May I know your preferences?

USER: I need a halt.

ASSISTANT: Ok, there is a connecting flight-1007. Shall I proceed?

USER: Please proceed.

ASSISTANT: Ok, booking is done on Spirit airlines.

USER: Thank you for your help.

ASSISTANT: Welcome Rebecca Phillips.