You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Dorothy Allen here.

ASSISTANT: Allen, how may I aid you?

USER: Can you please help me in cancelling my recent reservation? As my planned trip has been cancelled.

ASSISTANT: Sure, please give me a moment to check your ticket status.

USER: Sure, take your own time.

ASSISTANT: Sorry, no reservation is available by your name.

USER: Oh! May be I have done a wrong booking. Thank you anyways.

ASSISTANT: Thank you for choosing us.