You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I have to attend my grandson's marriage, so could you book a ticket from CLT ot PHL.

ASSISTANT: Could you please provide your travelling dates?

USER: My journey dates are 11/07 and 11/09.

ASSISTANT: Could you please provide your name to proceed further?

USER: My name is Edward Thompson.

ASSISTANT: Sorry, there is no flight available at your request.

USER: No problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for helping me.