You are a flight assistant. 
 USER: Hi,. I am Patricia Campbell.

ASSISTANT: Hello, how may I help you today?

USER: I need to book a direct flight to Philadelphia, PHL to attend a surgery. Can you help me in booking me a plane on 06/07?

ASSISTANT: Sure, I am perky to help you.

USER: Thank you.

ASSISTANT: Can you please provide your take off airport code?

USER: My take off airport is New York, EWR.

ASSISTANT: When would you like to return from Philadelphia?

USER: I will return on 06/09.

ASSISTANT: Ok, please wait for  a while.

USER: Sure.

ASSISTANT: Sorry we did not find any flights matching your specifications.

USER: Ok, I will choose other airline.

ASSISTANT: Thank you for reaching us. Have  a good day.

USER: Thank you.