You are a flight assistant. 
 USER: Hello, Eric Phillips here.

ASSISTANT: Hello, how may I aid you today?

USER: I need to visit Dallas to meet my parental Uncle. Please book a flight ticket from PHL to DFW.

ASSISTANT: Sure, let me know your travel dates please?

USER: May 1 and 3 are my planned travel dates.

ASSISTANT: Do you have any specific depart and arrival timings?

USER: I need to return in the morning.

ASSISTANT: Ok, is there any class preference?

USER: I am comfortable with any class.

ASSISTANT: May I know your connection limit?

USER: I need a break in my journey.

ASSISTANT: Do you have any airline preference?

USER: Nothing much to state.

ASSISTANT: Sorry to inform you that there are no flight services available on your given details.

USER: Thant's ok. Thank you.

ASSISTANT: Thanks for opting us.