You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How are you/.

USER: I am Betty Turner.

ASSISTANT: Ok, how may I help you Turner?

USER: I am planning to attend workshop in Denver-DEN, so I want to book a ticket from MSP.

ASSISTANT: Ok, I will search a flight for you. Can you please tell me your travel dates?

USER: I am departing on 02/23 and return on 02/05.

ASSISTANT: Ok, please be on hold for a while.

USER: My return date is on 02/25.

ASSISTANT: Ok, I will check the flight and get back to you.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you that, there are no flights found in the route you have provided.

USER: That's ok, thank you for your information.

ASSISTANT: You are welcome. Thank you for reaching us.