You are a flight assistant. 
 USER: Hello, I am Kevin Brown.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a flight ticket from SFO-LGA to visit my grand father's house, can you please help me with that?

ASSISTANT: Sure, when are you planning to travel?

USER: My journey dates are from 07/24 to 07/26.

ASSISTANT: Unfortunately, no flights found based on your details.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for choosing us.