You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Melissa Adams. I would like to make a reservation in this route from SFO to PHL. Can you please assist me?

ASSISTANT: Sure, I will help you with that. Can I know your travel dates?

USER: My travel dates are 01/05 and 01/07.

ASSISTANT: Sorry Adams, there is no flight available for those locations.

USER: It's ok, thank you for searching.

ASSISTANT: Thank you for consulting our agency.