You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I address you today?

USER: I am planning to go for a trip to New York for Manhatten skyline, could you aid me in booking a ticket on 08/11?

ASSISTANT: Sure, please forward your journey locations?

USER: Sure, I will board at CLT and land at EWR.

ASSISTANT: When would you like to return?

USER: I will be back on 08/13.

ASSISTANT: May I know your good name please?

USER: I am Frank martin.

ASSISTANT: No flights are available with your request.

USER: Ok, I will choose alternative. Thank you.

ASSISTANT: Thanks for opting us.