You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please book a flight ticket from LAS to BOS?

ASSISTANT: Sure, may I know on which dates you want to travel?

USER: My travel dates are Mar 14 and 16.

ASSISTANT: Ok, do you need any connection in between the journey?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, please share your class preference.

USER: I am comfortable with any class.

ASSISTANT: Do you have any other specifications?

USER: I prefer normal cost airlines.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry no flights found with your details.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us, have a good day. May I know your name please?

USER: My name is Sarah Parker.

ASSISTANT: Ok, thank you.

USER: Thank you.