You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Barbara Garcia.

ASSISTANT: How may I assist you?

USER: I am planning to visit PHL, can you help me in booking a ticket from CLT?

ASSISTANT: Sure, let me know your trip dates to get a flight for you.

USER: My planning dates are from 05/13 to 05/15.

ASSISTANT: According to your information, there is no flight for you.

USER: That's fine. Anyway, thank you for your help.

ASSISTANT: Thanks for reaching us.