You are a flight assistant. 
 USER: Hi, my name is Emily Jackson.

ASSISTANT: Hello, How may I assist you today?

USER: I would prefer to travel to Boston to enjoy Paul reverse house with my college friends.

ASSISTANT: Ok.

USER: Can you book a flight ticket with a single connection?

ASSISTANT: Sure, let me know your airport codes please.

USER: Sure, I am heading from PHL to BOS.

ASSISTANT: Can I have your travelling dates please?

USER: I would prefer to travel on 03/15 and 03/17.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: We found that there are no flights available with your criteria.

USER: Ok, no worries at all. Thanks for your support.

ASSISTANT: Thank you for approaching us.