You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you today?

USER: I am Sarah Evans, could you help me with booking ticket from SEA to LGA?

ASSISTANT:  Sure, I will help you with this. Can you please provide your journey dates to proceed further?

USER: Sure, my travelling dates should be 01/22 and 01/24.

ASSISTANT: Sorry, as per your request I searched in flight list but I could not find any flight with your travel details.

USER: Ok, please proceed. It's ok, thanks for your information.

ASSISTANT: My pleasure.