You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Jack Jones.

ASSISTANT: How can I help you?

USER: I want to travel from PHX to MSP, could you help me in booking the ticket?

ASSISTANT: Sure, can I know your travelling dates?

USER: The dates of travel are from 01/20 to 01/22.

ASSISTANT: Ok, give me a moment. Sorry to say that there are no flights found matching your requirement.

USER: That's ok. Thank you for your time.

ASSISTANT: You are welcome.