You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I am Alexander Carter. Can you please book a flight ticket from SEA to CLT?

ASSISTANT: Sure, I am gleeful to help you. Could you please provide your travelling dates to search for the flight?

USER: Sure, I need to travel on dates of 11/07 and 11/09.

ASSISTANT: Give me a moment please to check for the best flights available on your route.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry to say, no flights were found on your route.

USER: Oh! It is sad to hear. I need to go with another agency this time. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us, have a nice day.