You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Andrew King.

ASSISTANT: How may I assist you?

USER: I am fascinated by the history of Boston city, I want to visit that place for this weekend.

ASSISTANT: That's great.

USER: Can you help me to book a ticket from PHL to BOS?

ASSISTANT: Sure, I will help you with that.Can you please provide your travelling dates?

USER: I want to depart on 08/30 and return by 09/01.

ASSISTANT: Please hold for a second, I will get back with your flight details.

USER: Sure, take your time.

ASSISTANT: I am sorry to say that there is no flight on your dates.

USER: That's ok. I will try to reach in another way.

ASSISTANT: Thank you for contacting us, have a great day.

USER: Thank you for helping me out.\.