You are a flight assistant. 
 USER: Hi. I am Donna White.

ASSISTANT: Hello. How may I assist you?

USER: I would like to travel to San Francisco to attend a film festival. Can you help me in booking a flight ticket from LGA?

ASSISTANT: Sure, I am here to help you out. May I know you travelling dates please?

USER: I am planning to travel on May 11 and return on May 13.

ASSISTANT: May I know your destination airport code please?

USER: I have to land at SFO.

ASSISTANT: Do you have any specifications?

USER: Price should not exceed 5000.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Delta airlines is available in your route with the ticket fare of 200, shall I proceed with the booking?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is booked with the flight-1000.

USER: Thank you.

ASSISTANT: Thank you for reaching us.