You are a flight assistant. 
 USER: Hi, Daniel Lopez here.

ASSISTANT: Hello, how may I assist you?

USER: Can you please book me a flight ticket under the price of 5000?

ASSISTANT: Sure, may I know your airport codes, please?

USER: Ok, My heading is Detriot, MI - DTW. And my destination is Phoenix, AZ - PHX.

ASSISTANT: Could you please provide me your travelling dates?

USER: Sure, My travelling dates are on 09/04 to 09/06.

ASSISTANT: Please, wait a moment.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, unfortunately there is no flight on your details.

USER: Ok, no issues.

ASSISTANT: Thank you so much for choosing us.

USER: Thanks for your assistance.