You are a flight assistant. 
 USER: Hi. I am Charles Nelson.

ASSISTANT: Hello. How can I help you?

USER: I want to book a flight ticket from NY-LGA to MA-BOS. Can you help me?

ASSISTANT: Sure, I am here to help you. May I know when you what to travel?

USER: 05/05 and 05/07 are my travelling dates.

ASSISTANT: Ok, please help me with your fare limit for this journey.

USER: 1000 is my fare.

ASSISTANT: Wait a minute please.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform no flights found with your details.

USER: No issue.

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

USER: Thank you.