You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your service today?

USER: Can you please help me in booking a flight ticket from SFO to PHL?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates please?

USER: Sure, my travel dates are from Apr 12 to Apr 14.

ASSISTANT: Do you have any other specifications?

USER: I would like to depart in the morning flight.

ASSISTANT: Please help me with your name for booking.

USER: Myself Charles Gonzalez.

ASSISTANT: Sorry for this inconvenience, I could not find any flight with your requirements.

USER: Can you please check with single connection?

ASSISTANT: Sorry, no flight found.

USER: Ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.