You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Deborah Hall here.

ASSISTANT: How may I guide you today?

USER: I am looking for a flight ticket with price below 200. Can you book it?

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

USER: My preferable dates for travel are 08/08 to 08/10.

ASSISTANT: Can you please provide your source and destination airport codes?

USER: My airport codes for boarding the flight are LAS to LAX.

ASSISTANT: Please wait for a minute.

USER: Ok.

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

USER: Ok, not a problem.

ASSISTANT: Thank you for contacting us.

USER: Thank you.