You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: I am planning to meet my friend in Boston. Could you please help me with booking a flight ticket from SFO to BOS?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: My planned travel dates are from July 12 to July 14.

ASSISTANT: Can I know your name please?

USER: Sure, my name is Ronald Hernandez.

ASSISTANT: Do you need any airline preference?

USER: No, I am comfortable with any airlines.

ASSISTANT: Can I know your specifications?

USER: Sure, I need a connecting flight in my journey.

ASSISTANT: Sorry, there are no flights found as per your specifications.

USER: Not a big problem, anyway thank you for the information.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.