You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Dennis Collins here.

ASSISTANT: How can I assist you Dennis?

USER: I wish to give an audition in New York Hall, can you help me to book a flight ticket?

ASSISTANT: Please share your airport codes.

USER: Sure, it's from IAH to JFK.

ASSISTANT: Please can you provide your travel dates?

USER: Sure, I need to go on 03/31 and return on 04/02.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: I have not found any flight for you as per your details.

USER: Ok, not an issue. Thank you for checking.

ASSISTANT: Thank you for reaching our agency.