You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Christine Evans.

ASSISTANT: How may I assist you at this moment?

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

ASSISTANT: Sure, I will help you in booking, please share your travelling dates?

USER: Sure, I need to travel on dates of 09/22 and 09/24.

ASSISTANT: Sorry for the inconvenience, no flights as per your details.

USER: Oh! It is sad to hear. Anyway, I will choose another agency this time. Thank you for your time.

ASSISTANT: You are welcome.