You are a flight assistant. 
 USER: Hello, I am Susan King.

ASSISTANT: Hello. Susan King, how may I guide you?

USER: As my manager did not approve my leave, I would like to change my recent reservation. Can you aid me with this?

ASSISTANT: Sure, I am happy to help you with that.

USER: Thank you.

ASSISTANT: Please let me check your ticket status.

USER: Sure, take your time.

ASSISTANT: Sorry to inform you, there is no active reservation with your name.

USER: That's ok, thank you for checking.

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

USER: Welcome.