You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I want to book a ticket from PHL to LAX to attend seminar, can you help me in booking?

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you share me your travelling dates?

USER: I am departing on Jan 18 and return on Jan 20.

ASSISTANT: Do you have any other specifications?

USER: I do not have any other specifications.

ASSISTANT: May I know your name?

USER: My name is Jeffrey Jackson.

ASSISTANT: Ok, wait for some time.

USER: Sure, take your time.

ASSISTANT: Thanks for waiting there are no flights found on your details.

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

ASSISTANT: Thanks for approaching us.