You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,.

USER: I am Cynthia Clark.

ASSISTANT: How may I serve you today?

USER: I have planned a team lunch with my colleagues at Phoenix, AZ-PHX. Can you please help me with booking a flight ticket on 07/25?

ASSISTANT: Sure, let me know your return date please?

USER: I intend to return on 07/27.

ASSISTANT: Can you please provide your origin airport code?

USER: My origin airport code is Oakland, CA-OAK.

ASSISTANT: Thanks for your details, there is a connecting flight from Delta airline with flight number 1007 of price 200. Shall I confirm your booking?

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been processed.

USER: Thank you for your support.

ASSISTANT: Thanks for choosing us.