You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: Can you please book a flight ticket from SEA to SFO?

ASSISTANT: Sure, please provide your travel dates.

USER: My travelling dates are from Feb 21 to Feb 23.

ASSISTANT: Do you have any preferences?

USER: I prefer normal-cost airline.

ASSISTANT: May I know your name?

USER: My name is Rachel King.

ASSISTANT: Rachel King, do you have any other preferences?

USER: I need a connecting flight.

ASSISTANT: Sorry, I did not find any flights for you.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.