You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to visit my farm house, can you book a ticket from SFO to BOS?

ASSISTANT: Let me know the travel dates?

USER: Sure, my planned departure and return travel dates are 9th and 11th of June.

ASSISTANT: Is there any time concern.

USER: No, I don't have any time concerns.

ASSISTANT: May I know the connection limit.

USER: Yes, it is 1.

ASSISTANT: Is there any class preference?

USER: No, I'm ok with any class.

ASSISTANT: Are there any airline preferences?

USER: Yes, I prefer normal-cost airlines.

ASSISTANT: May I know your name please?

USER: Sure, my name is Betty King.

ASSISTANT: Give me a moment.

USER: Sure, take your own time.

ASSISTANT: Betty King, sorry to inform that there are no flights on your route with the given dates.

USER: That's ok, thank you for giving the information.

ASSISTANT: Thank you for reaching us.