You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Raymond Walker.

ASSISTANT: What help that you need from our travel agency?

USER: I would like to meet my friend at Boston, will you help me in booking the flight ticket from PHL to BOS?

ASSISTANT: Sure, I am here to help you with the ticket booking. Can you please provide me your travel dates?

USER: My travelling dates are 12/07 and 12/09.

ASSISTANT: Ok, please wait a minute while I am checking the flight for you.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry to inform you, there is no flight available in this route on the dates you have provided to me.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you for approaching us. Have a nice day.