You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jeffery Turner.

ASSISTANT: How may I aid you now?

USER: I need to book a ticket from PHL to BOS, as I need to attend my business meeting?

ASSISTANT: Ok. I will help you in that. Do you have any price limit?

USER: I can spend up to 5000.

ASSISTANT: When you are planning to travel?

USER: I planned my trip from 08/26 to 08/28.

ASSISTANT: Please wait, I will search a flight for you.

USER: Sure.

ASSISTANT: Thanks for waiting. Unfortunately, there are no flights found on your dates.

USER: No issue, thank you for checking.

ASSISTANT: Thank you for reaching us.