You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to make my father's flight reservation because he want to meet his old friend in Philadelphia. Can you book the flight to him from Los Angeles?

ASSISTANT: I am here to help you in booking his flight ticket, can you please provide me his itinerary dates?

USER: Sure, my probable travelling airports codes are from LAX to PHL.

ASSISTANT: Noted, can you please tell us his travel dates?

USER: My travel dates are from 01/20 till 01/22.

ASSISTANT: Ok, please wait for sometime.

USER: Sure.

ASSISTANT: Before I proceed with booking, can you please tell me your father's name?

USER: His name is Samuel Anderson.

ASSISTANT: Flight-1017 is available in JetBlue airlines, shall I book the ticket?

USER: Thank you for your help. Please proceed with it.

ASSISTANT: The ticket is booked successfully.

USER: Thank you.

ASSISTANT: Thank you for contacting us.

USER: Welcome.