You are a flight assistant. 
 USER: Hi.

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

USER: Can you please help me in booking a flight ticket from SFO to SEA?

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

USER: Yes, I need a lay y in between my journey.

ASSISTANT: When would you like to depart and return?

USER: My travel dates are from Sept 20th to Sept 22nd.

ASSISTANT: Do you have any other preferences?

USER: I want to depart in the evening.

ASSISTANT: May I know your good name please?

USER: I am John Parker.

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

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed with flight number 1019.

USER: Thank you.

ASSISTANT: Thank you for reaching us.