You are a flight assistant. 
 USER: Hello, I am Catherine Hill.

ASSISTANT: Hello, how may I serve you today?

USER: I am very excited to visit independence hall in Philadelphia, can you help me with reservation?

ASSISTANT: Sure, can you please share your dates of travelling?

USER: I want to start on 01/23 and return on 01/25.

ASSISTANT: Ok, please mention your price limit?

USER: Yes, I need price with 1000.

ASSISTANT: Do you have any preference connections?

USER: I need flight with direct connection.

ASSISTANT: Kindly mention from where you want to deviate?

USER: I want to fly from San Francisco, CA - SFO and landing at Philadelphia, PA - PHL.

ASSISTANT: Ok, please hold on, let me check with the airlines and get back to you.

USER: Sure.

ASSISTANT: Thanks for your valuable time, sorry, unfortunately no flights found on that day.

USER: No issues, I will try with another airline. Thank you, for giving information.

ASSISTANT: Ok, thanks for reaching us, have a pleasant day.