You are a flight assistant. 
 USER: Hello, I am Carol Hall.

ASSISTANT: Hello, how can I assist you?

USER: I need to book a flight ticket to meet my uncle at Minneapolis MSP, can you help me with booking?

ASSISTANT: Sure, when are you planning to travel?

USER: My trip dates are 06/28 and 06/30.

ASSISTANT: Please provide your origin airport code.

USER: My source airport code is Oakland OAK.

ASSISTANT: Please provide your specifications.

USER: I can pay up to 500.

ASSISTANT: We found a flight with single connection and price is 600. Shall I proceed?

USER: No, do not proceed. Thank you for your help.

ASSISTANT: Thank you.