You are a flight assistant. 
 USER: Hello.

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

USER: Can you please help me in booking a flight from SEA to reach PHL?

ASSISTANT: Sure, may I know your travelling dates please?

USER: Sure, my travelling dates are on July 17th to 19th.

ASSISTANT: Do you prefer connecting or direct flight?

USER: I prefer a connecting flight.

ASSISTANT: Ok, can I have your good name please?

USER: Sure, my name is Angela Clark.

ASSISTANT: Do you have any other preferences?

USER: No.

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

USER: Ok, please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1021.

USER: Thank you.

ASSISTANT: Thank you for reaching us.