You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I plan to visit my grand father's home to meet him. Can you book a flight for me?

ASSISTANT: I am happy to assist you about your flight ticket booking. Could you please let me know your planned dates of journey?

USER: I will travel on July 19 and return on July 21.

ASSISTANT: Can you please provide your nearest airport codes of journey?

USER: My source point is Orlando and destination point is Oakland.

ASSISTANT: Do you have any specific requirement about the connecting flights for this trip?

USER: It will be better if you provide me connecting flight.

ASSISTANT: Do you have any other requirements for your journey?

USER: No.

ASSISTANT: Can you please provide your name for further proceedings?

USER: My name is Betty Lopez.

ASSISTANT: Betty Lopez, there is a flight by American airlines having a ticket fare of 100 which departures in the evening. Would you like me to book this flight for your journey?

USER: Please proceed with booking.

ASSISTANT: I have reserved your flight ticket with the flight 1003 in an economy class.

USER: Thank you for helping me.

ASSISTANT: You are welcome, thank you for employing our service. Have a safe journey.