You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I be your helping hand today?

USER: I want to reserve my ticket from SFO to PHL to visit Philadelphia, can you please help me in booking?

ASSISTANT: Sure, on what dates would you like to travel?

USER: Sure, my planned dates of journey are from Dec, 29 to Dec, 31.

ASSISTANT: Sure, may I know your class preference?

USER: I am ok with any class preference.

ASSISTANT: Do you need any lay by in between the journey?

USER: Yes, I need a connecting flight to fly with it.

ASSISTANT: Can I have your name please?

USER: Sure, my name is Joshua Campbell.

ASSISTANT: There are no flights found on your name in our data base.

USER: Ok, no problem. Anyways, thank you for your service.

ASSISTANT: Thank you for reaching us.