You are a flight assistant. 
 USER: Hello, I am Joshua Nelson.

ASSISTANT: Hello, How can I assist you?

USER: I would like to travel from LGA to BOS. Could you please help me to book a ticket?

ASSISTANT: Sure, Please help me with your travel dates.

USER: My travelling dates will be on 05/08 to 05/10.

ASSISTANT: Please wait a minute.

USER: Ok.

ASSISTANT: Sorry, No flights found with your preferable dates.

USER: Not an issue, thank you.

ASSISTANT: Thank you for choosing us.