You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: There is a cancer patient with me his last wish is to travel from SEA to OAK, can you help me in booking a ticket?

ASSISTANT: Sure, let me know your travel dates?

USER: My preferable dates are from 03/10 to 03/12.

ASSISTANT: The flight 1022 of AA airlines is available on your request. Shall I proceed?

USER: Ok, please proceed with the booking.

ASSISTANT: Can I know the name for booking?

USER: Sure, I am Gary Allen.

ASSISTANT: Yes Gary, your ticket is booked successfully.

USER: Thank you for your service.

ASSISTANT: You are welcome.