You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: My friend suggested me to visit New York city, can you please help me to reserve a flight ticket from Oakland?

ASSISTANT: Sure, I am here to help you. May I know your travel dates?

USER: Thank you. The planned travel dates are May 4 and May 6.

ASSISTANT: May I know your arrival airport code?

USER: The nearest airports to my desired locations are OAK and LGA.

ASSISTANT: Do you have any connection limit?

USER: The maximum connection limit of the flight should be 1.

ASSISTANT: Let me know your airline preference.

USER: I always prefer a normal-cost airlines.

ASSISTANT: Do you have any other specifications?

USER: No, I didn't have any other specifications.

ASSISTANT: Please, provide me your name.

USER: My name is Sandra Gonzalez.

ASSISTANT: Sorry, no flights are found on your desired travelling dates.

USER: It's ok, not a problem with that. Thank you for your time.

ASSISTANT: Thank you for opting us.