You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Can you please help me in booking a flight ticket from IAH to LAX?

ASSISTANT: Sure, we are happy to assist you in booking. Please share your planned travelling dates to proceed further.

USER: Thank you. My travel dates are from July 5th to July 7th.

ASSISTANT: Do you need a stopover in between your journey?

USER: Yes, I need a single stopover in between my journey.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: Ok, please wait a moment I'll search best flight for you.

USER: Ok.

ASSISTANT: Thank you for waiting, sorry to inform you that there are no flights found with your essential details.

USER: No issues. Thank you.

ASSISTANT: Thank you for approaching us. Can I have your name please?

USER: I am Nancy Lee.

ASSISTANT: Thank you.

USER: Welcome.