You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have to meet my sister-in-law at Dallas, so please book my ticket from MSP to DFW.

ASSISTANT: Ok, please let me know your trip dates.

USER: My itinerary dates are 01/01 and 01/03.

ASSISTANT: There is a direct flight for you. Is it ok?

USER: I need a connecting flight.

ASSISTANT: Ok, let me check.

USER: Ok.

ASSISTANT: Meanwhile may I know your name? Ok, there is no flight found on your route book a ticket for you.

USER: Helen Nelson here. Thank you.

ASSISTANT: Welcome.