You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Lisa Roberts here.

ASSISTANT: How may I assist you?

USER: Please book me a ticket from PHL to JFK.

ASSISTANT: I am happy to help you, please help me with your travelling dates.

USER: My trip dates will be Jan 10 to Jan 12.

ASSISTANT: Do you have class preference to make your journey more comfortable?

USER: No.

ASSISTANT: There is a connecting flight-1026 with price 100, is it ok for you?

USER: Please proceed.

ASSISTANT: Ok, booking is done on Spirit airlines.

USER: Thank you.

ASSISTANT: Thanks for reaching us, have a good day.