You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Alexander Davis.

ASSISTANT: How can I assist you at this moment?

USER: With my friend suggestion I want to travel from PHL to CLT locations, can you please reserve a flight ticket for my trip?

ASSISTANT: Sure, can you please provide your travelling dates?

USER: I want to travel on 08/01 date and return back on 08/03 date.

ASSISTANT: Wait a moment please. Alexander Davis, there are no flights available on this route due to heavy bookings.

USER: It's ok. Thank you for the information.

ASSISTANT: Thank you for contacting us.