You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Green.

ASSISTANT: How may I serve you today?

USER: I am planning to meet my cousin and surprise him at San Francisco SFO, can you help me with booking a connecting flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My depart date is 11/19 and arrival date is 11/21.

ASSISTANT: Ok, please share your source airport code?

USER: My boarding airport code is Oakland CA- OAK.

ASSISTANT: Kindly mention your price limit?

USER: My price limit is 5000.

ASSISTANT: We found a UA airline with fare of 100 and lay over in between the journey matches your schedule. Shall I proceed with booking?

USER: Please reserve it.

ASSISTANT: Your ticket has been confirmed with flight number 1015.

USER: Thank you.

ASSISTANT: Thank you for opting us.