You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Anna Garcia here.

ASSISTANT: How can I assist you now?

USER: Can you please book a flight from IAH to SEA?

ASSISTANT: Sure Anna Garcia, I am happy to help you with that.  Can I have your travel dates please?

USER: My journey dates are from Feb 4th to Feb 6th.

ASSISTANT: Ok, please let me know timings of your journey.

USER: My return time will be in morning.

ASSISTANT: Are  you looking for any specific airlines?

USER: No, thanks for asking.

ASSISTANT: Sorry Anna Garcia, no morning flight is available to you on your return date.

USER: Oh! That's very sad to know form your side. Anyways, thank you for checking.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Welcome.