You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I am Jessica Williams. Could you please book a flight ticket to CLT from SEA as I want to attend a storytelling festival?

ASSISTANT: Sure, I will help you to book a flight ticket. Can you please share me your travelling dates?

USER: My trip dates are May 9 to May 11.

ASSISTANT: Ok, do you have any connection limit?

USER: I need a connecting flight which return in evening.

ASSISTANT: Ok, may I know your arrival and departure time?

USER: I need a flight which return in evening.

ASSISTANT: Sorry, no flights are available on your route.

USER: No issue, thank you.

ASSISTANT: Welcome, have a nice day.