You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Larry Johnson. Can you please reserve a flight ticket for me from EWR to IAH?

ASSISTANT: Sure, I will help you out.

USER: Thank you.

ASSISTANT: May I know your travelling dates please?

USER: The dates of my journey are 06/03 and 06/05.

ASSISTANT: Ok, please wait for a while.

USER: Ok, take your time.

ASSISTANT: Sorry, there are no flights found.

USER: It's ok, not a problem. Anyways thank you for searching.

ASSISTANT: Thank you for choosing us.