You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Carolyn Turner.

ASSISTANT: How may I render you at this moment?

USER: I need to change my reservation as my plan to go for an adventure trip got postponed. Can you help me?

ASSISTANT: Sure, I am here to help you. Please wait for few minutes.

USER: Sure.

ASSISTANT: We found a active reservation on your name. could you please provide your new travelling details?

USER: I need to reach IAH from MSP on July 15th and will return on 17th.

ASSISTANT: Ok, let me check with the availability of flights.

USER: Sure, take your own time.

ASSISTANT: Sorry to inform you that there  are no flights found on your requested dates.

USER: That's fine, thanks for your assistance.

ASSISTANT: Thank you for reaching us.