You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

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

ASSISTANT: Sure, may I know your trip dates?

USER: Thank you. I have planned my travel dates as Oct 27 and Oct 29.

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: No, I do not have any other specifications.

ASSISTANT: May I know your good name?

USER: Sure, myself David Miller.

ASSISTANT: Delta airlines flight- 1020 of price 100 with connection in economy class matches your given details, shall I proceed?

USER: That is fine, please proceed with booking.

ASSISTANT: Ok, your flight ticket has been booked.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.