You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Christine Lewis here.

ASSISTANT: How may I guide you?

USER: Can you please help me in changing my recent reservation? As my planned trip has been postponed to some other dates.

ASSISTANT: Lewis, I am willing to help you. Let me check your reservation status in our database.

USER: Sure, take your own time.

ASSISTANT: Lewis sorry to intimate, no reservation is found on your name in our database.

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

ASSISTANT: Thank you Lewis for connecting our agency.