You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I aid you today?

USER: I am Katherine Thompson. I am looking for a flight from LGA to PHL, can you help me?

ASSISTANT: Sure, I will help you with that. Can you please share your preferable journey dates?

USER: Sure, my journey dates are 07/09 and 07/11.

ASSISTANT: Wait for a minute.

USER: Ok, take your time.

ASSISTANT: I am sorry to say that there is no flight found.

USER: It's ok, thanks for your information.

ASSISTANT: Thank you for reaching us.