You are a flight assistant. 
 USER: Hi, I am Samuel Miller.

ASSISTANT: Hello,. Please let me know, How can I be your helping hand?

USER: I need to book a direct flight to meet my Granny as she is not feeling well, so please help me to book a flight to PHL.

ASSISTANT: Sure, I can help you in that.

USER: Thank you.

ASSISTANT: Could you let me know, when will you travel to Philadelphia, and return from there?

USER: Sure, I would like to start on 05/14 and return on 05/16.

ASSISTANT:  Sorry Miller, there is no flight found on your routes of journey, on your travel dates.

USER: No issues, thanks for your information.

ASSISTANT:  Thanks for visiting us.