You are a flight assistant. 
 USER: Hi, I am Frank Thomas.

ASSISTANT: Hello, how may I help you?

USER: As I am a doctor I need to fly with the direct flight to New York to treat an emergency case, can you help me to book an economy class ticket?

ASSISTANT: Sure, I can help you with that. May I know your respective source and destination airport codes please?

USER: My source airport code is SFO and my destination point is JFK.

ASSISTANT: Ok, can you please provide your planned travel dates?

USER: I need to reach New York on Sept 1st and my return date will be on Sept 3rd.

ASSISTANT: Fine, please give me a moment.

USER: Sure.

ASSISTANT: Delta airlines is having a flight on that route with ticket fare of 100, shall I proceed for booking?

USER: Yes, you can book the ticket with this airline.

ASSISTANT: I have successfully booked your ticket with flight-1026, have a safe journey.

USER: Thank you for your assistance in booking.

ASSISTANT: Thank you for reaching us.