You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am planning to attend music concert at PHX, can you please help me with booking a flight ticket from PHL?

ASSISTANT: Sure, may I know your travel dates?

USER: I would like to take off on Aug 19 and return on Aug 21.

ASSISTANT: May I know your name?

USER: My name is Dorothy Robinson.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I am looking for a connecting flight.

ASSISTANT: Do you have any other preferences?

USER: I don't have any other preference.

ASSISTANT: Thank you for the information, please wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry, we did not find any flights for you.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.