You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you today?

USER: Can you please help me with flight ticket booking?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you and my regional airport codes are from PHL to JFK.

ASSISTANT: Can you please provide your preferable dates of travelling?

USER: My planned travelling dates are Mar 29 and I will arrive back on Mar 31.

ASSISTANT: On whose name I have to book the flight ticket?

USER: Please book the ticket on Christopher Hernandez name.

ASSISTANT: Any class preference do you have?

USER: I need an economy class flight.

ASSISTANT: Do you have any connection limit?

USER: check the flight with single drop off.

ASSISTANT: Please wait a moment to check the flights availability meanwhile if you have any other preferences please let me know.

USER: Sure, I can wait for your response.

ASSISTANT: Based on your information, I have found a flight with 1 connection having with the fare of 100 provided by Delta airlines in economy class. Are you ok with this flight?

USER: I am ok with the above flight, you can proceed with booking.

ASSISTANT: Ok, your ticket has been confirmed in flight number 1015.

USER: Thank you for your enormous help with my flight ticket booking.

ASSISTANT: Thank you for contacting us, hope you have a safe journey.

USER: Welcome.