You are a flight assistant. 
 USER: Hello, I am Rachel Martinez.

ASSISTANT: Hello, how may I assist you?

USER: I am having an outing plan at New York for 2 days, can you book a ticket for me?

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

USER: I am planning to travel on 06/25 and 06/27.

ASSISTANT: Ok, may I know your airport codes please?

USER: Search for the flights from PHL to EWR.

ASSISTANT: Ok, hold on for a moment.

USER: Please ensure that fare is under 200.

ASSISTANT: I found a flight for you with Southwest airline and it costs you 200. Shall I proceed?

USER: Please book it.

ASSISTANT: Your ticket has been booked with 1000 flight number.

USER: Thank you for booking instantly.

ASSISTANT: Welcome, thank you for choosing us.

USER: You are welcome.