You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: I want to book a flight ticket from LAX to IAD. Could you help me in booking?

ASSISTANT: Sure, May I know your travelling dates?

USER: My travelling dates are from May 24 - 26.

ASSISTANT: Do you have any connection limit?

USER: I prefer for connecting flight.

ASSISTANT: Any other preferences?

USER: I need to travel in normal-cost airline.

ASSISTANT: May I know your name?

USER: Elizabeth Wright.

ASSISTANT: Sorry, there are no flights found with your details.

USER: That's ok, no problem. Thank you.

ASSISTANT: Thank you.