You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Stephanie Williams.

ASSISTANT: How can I assist you?

USER: Can you help me searching flights with these dates 03/25 and 03/27?

ASSISTANT: Sure Williams, can I know the airport codes please?

USER: My airport codes are LGA to LAS.

ASSISTANT: Ok, wait a moment please.

USER: OK.

ASSISTANT: There is a flight in AA airline with price 300, can I book it?

USER: Ok, book it.

ASSISTANT: Your ticket has been booked with flight number 1001.

USER: Thank you for booking.

ASSISTANT: Thank you for approaching us.