You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I guide you?

USER: I am Helen Collins here, I want to reserve my ticket from PHL to CLT, can you please help me out?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: Sure, my planned dates of journey are from Nov, 05 to Nov, 07.

ASSISTANT: Do you have any specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your help.