You are a flight assistant. 
 USER: Hi, I am Mary Anderson.

ASSISTANT: Hello, how may I aid you?

USER: I need to book a flight ticket from Minneapolis & St. Paul MSP to visit NASA space centre in Houston. Can you make a reservation to IAH?

ASSISTANT: Sure, we are euphoric to help you. Can you please provide your price limit?

USER: Sure, my price is 200.

ASSISTANT: Ok, Kindly mention your journey dates.

USER: Sure, I need to fly on 07/18 and 07/20.

ASSISTANT: Ok, please wait for a couple of minutes.

USER: Sure.

ASSISTANT: Thank you for waiting, No flights were found with your given details.

USER: Ok, no worries at all. Thank you for your assistance.

ASSISTANT: Thank you for reaching us.