You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Amanda Carter here.

ASSISTANT: How can I assist you?

USER: I want to celebrate my birthday with my family at Minneapolis, could you book my ticket from Denver?

ASSISTANT: Ok, may I know your travelling dates?

USER: My itinerary dates are Nov 7 and Nov 9.

ASSISTANT: Can you please mention your travelling airport codes?

USER: My genesis and terminus airport codes are DEN and MSP.

ASSISTANT: Sorry, no flights found on your route.

USER: No problem, thank you for your help.

ASSISTANT: Thank you for for reaching us.