You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: Please book a flight ticket from SFO to BOS?

ASSISTANT: Sure, please share your planned travel dates?

USER: My journey dates are May 08 and May 10.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Any class preferences?

USER: No.

ASSISTANT: Are your looking for any preferred airlines?

USER: No.

ASSISTANT: Do you have any specific timings to depart and return?

USER: No.

ASSISTANT: Can I have your name to proceed further?

USER: I am Christopher Gonzalez.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting,. Sorry, Christopher Gonzalez no flights found with your given dates.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for opting us.