You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: Can you please  book a flight ticket from PHL to ORD?

ASSISTANT: Sure, please share your planned trip dates?

USER: Thank you. I have planned my travel dates as Nov 04 and Nov 06.

ASSISTANT: Do you have any connection limit?

USER: I am looking for single connecting flight. So please check with that.

ASSISTANT: Any other requirements to be met?

USER: I do not have any more specifications.

ASSISTANT: May I know your good name?

USER: Sure, myself Melissa Gonzalez.

ASSISTANT: Sorry, there are no flights found with your given details.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.