You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to reserve my ticket from CLT to PHL. Will you please help me with booking a flight ticket?

ASSISTANT: Yes, can you tell me your dates of travel?

USER: My planned travel dates are from Feb 14 to Feb 16.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight in my journey.

ASSISTANT: Give me a moment.

USER: Sure, take your own time.

ASSISTANT: Sorry to inform you that there are no flights found on your requested dates.

USER: That's ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.