You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Larry Martinez here.

ASSISTANT: Larry, how may I help you?

USER: I have to meet my boss at Philadelphia, can you please help me to book my flight ticket from ATL to PHL?

ASSISTANT: Larry, can you please share me your travel dates?

USER: Sure, I want to depart on 05/01 and return on 05/03.

ASSISTANT: Sure, please wait for a while.

USER: Sure.

ASSISTANT: Larry, sorry for inconvenience no flights are available on your preferred dates.

USER: No problem, I will find an other way to travel. Thank you for the information.

ASSISTANT: Thank you Larry for approaching us.