You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Jessica Rodriguez.

ASSISTANT: How may I help you out?

USER: I need to depart in the morning. Could you please help me with booking a flight ticket?

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

USER: Sure, my travelling dates are Sep 20 and Sep 22.

ASSISTANT: Can I know your airport codes too?

USER: My airport codes are PHL and MSP.

ASSISTANT: Do you need any specifications?

USER: No, I do not have any other specifications.

ASSISTANT: Sorry, there are no flights found.

USER: No worries, thank you for the information.

ASSISTANT: Thank you for reaching us.