You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please book a flight ticket to Oakland, OAK with the name of Carolyn Johnson?

ASSISTANT: Sure, may I know your journey dates?

USER: My journey dates are, depart on 02/03 and arrival on 02/05.

ASSISTANT: Can you please provide your source airport code?

USER: My  source point is Houston, HOU.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: We found a Delta airline of flight number 1019 having a halt with ticket fare 100.

USER: Ok, proceed with the booking.

ASSISTANT: Your booking has been processed.

USER: Thanks for your help.

ASSISTANT: Thank you for choosing us.