You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christine Thomas.

ASSISTANT: How can I assist you?

USER: I am looking for a flight from 07/11 till 07/13, can you help me out please?

ASSISTANT: Sure, I'll help you with that. May I know your source and destination airport codes?

USER: My location airport codes are from IAH to DCA.

ASSISTANT: Ok, please wait for a while.

USER: Sure, take your own time.

ASSISTANT: Southwest airlines is having a flight with travel charge of 100, shall I proceed for booking?

USER: Please proceed with it, if it is with 1 stop.

ASSISTANT: Your ticket has been booked with flight-1011, have a safe journey.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.