You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself William King.

ASSISTANT: How may I assist you today?

USER: Can you please book a flight ticket from LGA to OAK?

ASSISTANT: Sure, I will help you. Could you please provide your preferable dates of travelling?

USER: I have business meeting on 05/12, so I want to departure on 05/11 and please book my return ticket also on 05/13.

ASSISTANT: Please hold on a moment to check the flights.

USER: Sure.

ASSISTANT: Based on your information, I have found a flight with 1 connection with the fare of 100. Shall I proceed with this?

USER: Yes, I am ok with this, you can proceed with booking.

ASSISTANT: Ok, your reservation is done successfully with flight number 1011.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us, have a great journey.

USER: Welcome.