You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I assist you today?

USER: I would like to take my children to Denver Museum of nature and science. So, please check flights on 06/03.

ASSISTANT: Sure, let me know your journey codes.

USER: Oakland, OAK to DEN, Denver are my airport codes.

ASSISTANT: Ok, may I know your price limit?

USER: Price limit is 5000.

ASSISTANT: Ok, when you intend to return back?

USER: I will be back on 06/05.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Thank you for waiting.

USER: Ok.

ASSISTANT: Sorry to say that, no flights were found on your required dates.

USER: Ok. Thank you for the prompt response. I will go for other alternative.

ASSISTANT: May I know your name?

USER: I am Sharon Gonzalez.

ASSISTANT: Thank you for reaching us.