You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I am Lisa Lewis. I am looking for a flight in the route Las Vegas to Philadelphia because I have to meet my friends. Can you please help me to find the flight?

ASSISTANT: Sure, can I know your travelling dates?

USER: Thank you for considering my request. My planned travel dates are Mar 04 and Mar 06.

ASSISTANT: Ok, let me know your source and destination airport codes?

USER: The boarding and landing airport codes are LAS and PHL.

ASSISTANT: Do you have any particular time for departing and returning?

USER: No, I have not planned any particular time for departing and returning.

ASSISTANT: May I know your airline preference?

USER: I am ok with any airlines.

ASSISTANT: Please wait a moment to check flight availability.

USER: Ok, please make sure that the price limit is 5000 or less.

ASSISTANT: We found a flight from AA airline with 1 connection and the fare is 200 with an economy class.Shall I proceed?

USER: I am fine with this flight details, please proceed with the ticket booking.

ASSISTANT: Your ticket is booked with 1006 flight number.

USER: Thank you for your assistance.

ASSISTANT: Thank you for reaching us.

USER: Welcome.