You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Nicole White.

ASSISTANT: How can I assist you today?

USER: Can you please reserve my ticket from Houston, HOU to Phoenix, PHX?

ASSISTANT: Sure, will you mention your travelling dates please?

USER: My preferable journey dates are from 01/26 to 01/28.

ASSISTANT: Please give me a moment.

USER: Sure, take your own time.

ASSISTANT: Thanks for waiting, there is no flights available under your preferable details.

USER: Ok, not an issue. I will find any other mode of transport for this trip. Thank you for contacting us.

ASSISTANT: Welcome, have a great day.