You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I render you at this moment?

USER: Please help me to book a flight ticket from PHX to ORD.

ASSISTANT: Sure, may I know your travelling dates?

USER: My journey dates are from May, 19 to May, 21.

ASSISTANT: Ok, share your good name.

USER: Rebecca Baker.

ASSISTANT: Do you need a lay by in between the journey?

USER: I need a single connecting flight.

ASSISTANT: Do you have any other requirements?

USER: No.

ASSISTANT: We found a Spirit Airlines with fare of 100 and a lay by in between the journey matches your schedule.

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed with flight number 1012.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.