You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Jacob Hill.

ASSISTANT: How may I guide you today?

USER: I would like to travel for a Los Angeles, could you please help me to reserve my ticket from IAH?

ASSISTANT: I will help you with that.

USER: Thank you.

ASSISTANT: can you please share your preferable travelling dates?

USER: Sure, my dates of journey is from 05/15 to 05/17. I want a direct flight.

ASSISTANT: May I know your destination code?

USER: Sure, my destination airport code is LAX.

ASSISTANT: Wait for a minute. I am sorry to say that there is no flight found.

USER: Ok, I will wait for this. Ok, no problem, I will try with the another travelling agency.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your service.